Answer:
1. central angle
2. semicircle
3. major arc
4. minor arc
Step-by-step explanation:
1. central angle is an angle whose vertex rest on the center of a circle, with its sides containing two radii of the same circle.
2. semicircle is simply a half circle which is formed by cutting a full circle along a diameter (that is union of the endpoints of a diameter).
3. major arc is an arc that is larger than a semicircle and is bounded by a central angle whose angle is lesser than 180°.
4. minor arc is an arc that is smaller than a semicircle and is bounded by a central angle whose angle is greater than 180°.
Answer:
major arc
1
the union of two points of a circle, not the end points of a diameter; and all points of the circle that are in the exterior of the central angle whose sides contain the two points.
2. central angle
the union of two points of a circle, not endpoints of a diameter, and all points of the circle that are in the interior of the central angle whose sides contain the two points
3. semicircle
the union of the endpoints of a diameter and all points of the circle lying on one side of the diameter.
4. minor arc
an angle in the plane of a circle with the vertex at the center of the circle
Step-by-step explanation:
The amount of pay Rachel will earn in an 8 hour shift if Rachel earns $3 more per hour than Leah's pay, .
Question is Incomplete; Complete question is given below;
The amount of pay Rachel will earn in an 8 hour shift if Rachel earns $3 more per hour than Leah's pay, [tex]p.[/tex] Using the given variables, write an expression for given situation.
Answer:
The expression for the amount Rachel will earn in 8 hrs shift is [tex]24+8p.[/tex]
Step-by-step explanation:
Given:
Leah's pay per hour is [tex]'p '.[/tex]
Now given:
Rachel earns $3 more per hour than Leah's pay.
So we can say that;
Rachel's pay per hour = [tex]3+p[/tex]
Now Number of hours Rachel work = 8 hrs
We need to write an expression for the amount Rachel will earn in 8 hrs shift.
Solution:
Now we know that;
the amount Rachel will earn is equal to Number of hours Rachel work multiplied by Rachel's pay per hour.
framing in expression form we get;
the amount Rachel will earn = [tex]8(3+p) =24+8p[/tex]
Hence The expression for the amount Rachel will earn in 8 hrs shift is [tex]24+8p.[/tex]
WILL GIVE BRAINLEST NEED HELP ASAP THANK YOU <3
In a race Derek is 10 yards ahead of mike, Mike is 5 yards ahead of Tom, and Ed is 20 yards ahead of Derek. List the runners in order from 1st to 4th.
A. Ed,Derek,Mike,Tom
B. Derek, Tom, Mike, Ed
C. Tom, Ed, Derek, Mike
D. Mike, Tom, Ed, Derek
Answer:
The answer is letter A, Ed, Derek, Mike, Tom
Explanation:
The question is asking for the order from the 1st to the 4th (first to last). All you have to do is to follow the instruction or draw an illustration (if you can).
If Derek is 10 yards ahead of Mike, this means that Derek's position is ahead of Mike.
If Mike is 5 yards ahead of Tom, then this means that Mike's position is ahead of Tom.
If Ed is 20 yards ahead of Derek, then this means that Ed's position is ahead of Derek.
If Derek is ahead of Mike, Mike being ahead of Tom and Ed being ahead of Derek, then you'll be able to tell the positions now.
This means that the 1st runner is Ed, while the second runner is Derek. The third runner is Mike, while the fourth runner is Tom.
Thus, this explains the answer.
The correct order of runners from 1st to 4th based on their positions relative to each other is Ed, Derek, Mike, Tom. This placement was determined by analyzing the distances between each runner as provided.
Explanation:To solve this problem, let's visually represent the position of each runner in relation to each other based on the information provided. We start by listing the distances given in the question: Ed is 20 yards ahead of Derek, Derek is 10 yards ahead of Mike, and Mike is 5 yards ahead of Tom. This information allows us to order the runners from first to last.
At the front, we have Ed; since Ed is 20 yards ahead of Derek, Ed is in the lead.Following Ed, we have Derek; Derek is placed here because we are told he is 20 yards behind Ed.After Derek comes Mike, who is 10 yards behind Derek but ahead of Tom by 5 yards.Last, we have Tom, who is 5 yards behind Mike, making him the last in this sequence.Therefore, the correct order from 1st to 4th is Ed, Derek, Mike, Tom, which corresponds to option A. Ed,Derek,Mike,Tom.
Benjamin threw a rock straight up from a cliff that was 48 ft above the water. If the height of the rock h, in feet, after t seconds is given by the equation h = -16 t² + 52 t + 48, how long will it take for the rock to hit the water?
It will take 4 seconds for the rock to hit the water.
To find out when the rock hits the water, we need to determine the time at which the height h becomes 0, because hitting the water means the height is 0.
Given the equation for the height h of the rock as a function of time t:
[tex]\[ h = -16t^2 + 52t + 48 \][/tex]
We set h to 0 and solve for t:
[tex]\[ 0 = -16t^2 + 52t + 48 \][/tex]
This is a quadratic equation. We can solve it using the quadratic formula:
[tex]\[ t = \frac{{-b \pm \sqrt{{b^2 - 4ac}}}}{{2a}} \][/tex]
Where a = -16, b = 52, and c = 48 .
Plugging in these values:
[tex]\[ t = \frac{{-52 \pm \sqrt{{52^2 - 4(-16)(48)}}}}{{2(-16)}} \][/tex]
[tex]\[ t = \frac{{-52 \pm \sqrt{{2704 + 3072}}}}{{-32}} \][/tex]
[tex]\[ t = \frac{{-52 \pm \sqrt{{5776}}}}{{-32}} \][/tex]
[tex]\[ t = \frac{{-52 \pm 76}}{{-32}} \][/tex]
Now we have two possible values for t:
[tex]\[ t_1 = \frac{{-52 + 76}}{{-32}} \][/tex]
[tex]\[ t_2 = \frac{{-52 - 76}}{{-32}} \][/tex]
[tex]\[ t_1 = \frac{{24}}{{-32}} = -\frac{3}{4} \][/tex]
[tex]\[ t_2 = \frac{{-128}}{{-32}} = 4 \][/tex]
Since time cannot be negative, we discuss, and the only valid solution is t = 4.
Therefore, it will take 4 seconds for the rock to hit the water.
An airplane flying into a headwind travels the 1800-mile flying distance between New York City and Albuquerque, New Mexico in 3 hours and 36 minutes. On the return flight, the same distance is traveled in 3 hours and 20 minutes. Find the airspeed of the plane and the speed of the wind, assuming that both remain constant.
airspeed of the plane mph
speed of the wind mph
Answer:
plane speed = 520 mph
wind speed = 20 mph
Step-by-step explanation:
let the speed of the wind be w mph and the speed of the plane be p mph
flying from NY to NM,
time taken = 3 hr 36 min = 3.6 hr
average ground speed = total distance / time taken
= 1800 / 3.6 = 500 mph
since it is a headwind, the plane speed will be slowed down by the head wind, resulting in a lower ground speed.
we can write the following equation:
ground speed = plane speed - wind speed
500 = p - w ------(eq1)
flying from NY to NM (return flight),
time taken = 3 hr 20 min = 3.333 hr
average ground speed = total distance / time taken
= 1800 / 3.333 = 540 mph
on the return trip, the headwind becomes a tailwind, hence the total ground speed would be faster than the plane's air speed , we can write the following equation:
ground speed = plane speed + wind speed
540 = p + w ------(eq2)
with these 2 systems of equations, we can solve for p & w using either substitution of elimination method.
eventually you will end up with
plane speed = 520 mph
wind speed = 20 mph
Speed of airplane is 520 miles per hour and speed of the wind is 20 miles per hour.
Let the speed of an airplane = x miles per minute
And the speed of the wind = y miles per minute
Distance between New York City and Albuquerque = 1800 miles
Airplane covers the distance between New York City and Albuquerque in 3 hours 36 minutes Or 3.6 hours.
In return journey, airplane covers this journey in 3 hours 20 minutes Or 3.33 hours.
Since, airplane takes more time from New York City to Albuquerque,
Therefore, airplane covered this distance against the wind,
And the speed of the airplane against the wind = (x - y) miles per hour
Expression for the speed,
Speed = [tex]\frac{\text{Distance}}{\text{Time}}[/tex]
(x - y) = [tex]\frac{1800}{3.6}[/tex]
x - y = 500 ------- (1)
Speed of airplane in return journey = (x + y) miles per hour
And the equation will be,
x + y = [tex]\frac{1800}{3.33}[/tex]
x + y = 540 ------- (2)
By adding equation (1) and (2),
(x - y) + (x + y) = 500 + 540
2x = 1040
x = 520 miles per hour
From equation (1),
520 - y = 500
y = 20 miles per hour
Therefore, speed of airplane is 520 miles per hour and the speed of wind is 20 miles per hour.
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This is timed. Please Help me.
Which is the function g(x) for a restricted domain? g(x) = Negative RootIndex 3 StartRoot x minus 4 EndRoot; x greater-than-or-equal-to –4 g(x) = Negative RootIndex 3 StartRoot x 4 EndRoot + 4; x greater-than-or-equal-to 0 g(x) = Negative RootIndex 3 StartRoot x + 4 EndRoot; x greater-than-or-equal-to –4 g(x) = Negative RootIndex 3 StartRoot x EndRoot minus 4; x greater-than-or-equal-to 0
Answer:
the answer is 2x=9-0
Step-by-step explanation:
put it in the cAC PAPER
Answer:
Its C
Step-by-step explanation:
Correct on ed genuity
g(x) + 3 x+4; x greater or equal to -4
The lunch bill for marty and breanna at a diner totaled $18.37. Tax on the meal was 6%, and they wanted to leave a 15% tip. How much was the meal including tax and tip?
Answer:
Step-by-step explanation:
The lunch bill for marty and breanna at a dinner totaled $18.37. Tax on the meal was 6%. The amount of tax on the meal would be
6/100 × 18.37 = 0.06 × 18.37 = $1.1022
Cost of the meal including the tax would be
18.37 + 1.1022 = $19.4722
They wanted to leave a 15% tip. The amount of the tip would be
15/100 × 18.37 = 0.15 × 18.37 = $2.7555
Therefore, the total cost of the meal, including tax and tip would be
19.4722 + 2.7555 = $22.23
. Patrick, by himself, can paint four rooms in 10 hours. If he hires April to help, they can do the same hob together in 6 hours. If he lets April work alone, how long will it take her to paint four rooms?
Answer: 15 hours
Step-by-step explanation:
Given : Patrick, by himself, can paint four rooms in 10 hours.
i..e Time taken by Patrick to paint the 4 walls = 10 hours.
Since rate of work = [tex]\dfrac{Work}{Time}[/tex]
We consider the entire job as 1.
Then, the rate of work done by Patrick = [tex]\dfrac{1}{10}[/tex]
If he hires April to help, they can do the same hob together in 6 hours.
i.e. the rate of work done by Patrick and April together = [tex]\dfrac{1}{6}[/tex]
Then, the rate of work done by April = rate of work done by Patrick and April together - rate of work done by Patrick
[tex]\dfrac{1}{t}=\dfrac{1}{6}-\dfrac{1}{10}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{10-6}{60}=\dfrac{4}{60}\\\\\Rightarrow\ \dfrac{1}{t}=\dfrac{1}{15}\\\\\Rightarrow\ t=15[/tex]
Hence,it will take 15 hours April to paint four rooms .
A uranium mining town reported population declines of 3.2%, 5.2%, and 4.7% for the three successive five-year periods 1985–89, 1990–94, and 1995–99. If the population at the end of 1999 was 9,320:
Answer:
Step-by-step explanation:
Heres the complete question:
A uranium mining town reported population declines of 3.2%, 5.2%, and 4.7% for the three successive five-year periods 1985–89, 1990–94, and 1995–99. If the population at the end of 1999 was 9,320:
How many people lived in the town at the beginning of 1985? (Round your answer to the nearest whole number.)
solution:
Let the population of the town at the beginning of 1985 be P. Then, given that in the first five-year period the population declined by 3.2%, i.e., 0.032, the population of the town at the end of 1989 would be
(1 – 0.032)P = 0.968P.
Again, given that in the second five-year period the population declined by 5.2%, i.e., 0.052, the population of the town at the end of 1994 would be
(1 – 0.052)(0.968P) = 0.948 x 0.968P = 0.917664P.
Finally, given that in the third five-year period the population declined by 4.7%, i.e., 0.047, the population of the town at the end of 1999 would be
(1 – 0.047)(0.917664P) = 0.874533792P.
We are given, 0.874533792P = 9320 or
P = 9320/0.874533792 = 10657.11.
Thus, 10657 people lived in the town at the beginning of 1985
Final answer:
This is a mathematics question requiring the computation of past populations based on given percentage declines and the population at the end of 1999.
Explanation:
The question involves calculating the population of a uranium mining town at a prior date based on given percentage declines over successive five-year periods and the known population at the end of 1999. Since the population at the end of 1999 was 9,320, we work backward using the given percentage declines for each five-year period to estimate the population at the beginning of 1985. The calculation takes into account a 3.2% decline for 1985-89, a 5.2% decline for 1990-94, and a 4.7% decline for 1995-99. By applying these percentage changes in reverse, we can determine the population at the start of 1985.
HELP!! 13 PTS!!!
Write a function of the form f(x) = a/x-h + k
With vertical asymptote is x=-2, horizontal asymptote is y=-5. The graph expands vertically by a factor of 2 and reflects across the x-axis.
Answer:
Step-by-step explanation:
VA= -2
HA= -5
F(x)= 2(x+5)/-(x+2)
what is 32% of 240 PLEASE I WILL GIVE BRAINLIEST
Answer:
76.8
Step-by-step explanation:
Ms.Franks drives a maximum of 150 miles per week to and from work. She works 5 days per week. Write an inequality that shows m the number of mies she drives per day
Answer:
Step-by-step explanation:
Let m represent the number of miles that she drives per day.
She works 5 days per week. This means that the total number of miles that she drives in a week would be
5 × m = 5m
Ms.Franks drives a maximum of 150 miles per week to and from work. Therefore, the inequality that shows m the number of miles she drives per day would be
5m ≤ 150
m ≤ 150/5
m ≤ 30
Ms.Paulino has 10 1/2 cups of candy to distribute to her students for their science experiment. If each group of students need exactly 1 1/5 cups of candy or complete the procedure accurately, how many groups can Ms. Paulino make ?
Answer:
8 groups
Step-by-step explanation:
The number of possible groups can be found from ...
(10.5 cups)/(1.2 cups/group) = 8.75 groups
Ms. Paulino has enough candy to give the exact amount required to 8 groups.
_____
She will have (3/4)×(1 1/5) = 9/10 of a cup of candy left over.
Your brother has $2000 saved fo a vacation. His airplane ticket is $637. Write and solve an inequality to find out how much he can spend for everything else.
The amount he can spend for everything else is less than or equal to 1363
The inequality is : [tex]s\leq 1363[/tex]
Solution:
Let "s" represent the brother's money to spend
Your brother has $2000 saved for a vacation
His airplane ticket is $637
Write an expression for the total money spent by adding "s" and the price of plane ticket $ 637
We can frame a inequality as:
[tex]s+637\leq 2000[/tex]
Here we have used "less than or equal to" symbol, because he can spent only up to 2000
Solve the inequality for "s"
[tex]s+637\leq 2000\\\\\text{Add -637 on both sides of inequality }\\\\s+637-637\leq 2000-637\\\\s\leq 1363[/tex]
Thus the amount he can spend for everything else is less than or equal to 1363
Vicky drew a scale drawing of a city. She used the scale 1 inch : 2 yards. If the actual width of a neighborhood park is 62 yards, how wide is the park in drawing?
Answer:
The park is 31 inches wide in the drawing.
Step-by-step explanation:
Given:
Vicky drew a scale drawing of a city. She used the scale 1 inch : 2 yards.
The actual width of a neighborhood park is 62 yards.
Now, to find the width of park in drawing.
Let the width of park in drawing be [tex]x.[/tex]
The scale drawing of the city is 1 inch : 2 yards.
So, 1 inch is equivalent to 2 yards.
Thus, [tex]x[/tex] is equivalent to 62 yards.
Now, to get the width of park in drawing by using cross multiplication method:
[tex]\frac{1}{2} =\frac{x}{62}[/tex]
By cross multiplying we get:
[tex]62=2x[/tex]
Dividing both sides by 2 we get:
[tex]31=x[/tex]
[tex]x=31\ inches.[/tex]
Therefore, the park is 31 inches wide in the drawing.
Answer:
Answer:
31 inches
Step-by-step explanation:
62 yds divided by 2 equals 31 in
Step-by-step explanation:
she has 6 cherry candies, 3 grape candies, and 3 lime candies. If Charlotte randomly pulls one piece of candy out of the bag, what is the probability that it will be cherry? Round to the nearest hundredth.
Answer: [tex]\dfrac{1}{2}[/tex]
Step-by-step explanation:
We know that probability for any event = [tex]\dfrac{\text{Number of favorable outcomes}}{\text{Total outcomes}}[/tex]
Given : Charlotte has 6 cherry candies, 3 grape candies, and 3 lime candies.
I..e Total pieces of candies she has = 6+3+3= 12
Now , If Charlotte randomly pulls one piece of candy out of the bag, what is the probability that it will be cherry is given by :-
[tex]\text{P(cherry)}=\dfrac{\text{Number of cherries}}{\text{Total candies}}\\\\=\dfrac{6}{12}\\\\=\dfrac{1}{2}[/tex]
Hence, the probability that it will be cherry is [tex]\dfrac{1}{2}[/tex] .
The probability that Charlotte will pull a cherry candy out of the bag is 0.50 or 50%.
To determine the probability that Charlotte will randomly pull a cherry candy from the bag, we need to use the basic probability formula:
Probability = (Number of favourable outcomes) / (Total number of possible outcomes)
Step-by-Step Solution
Count the number of cherry candies: Charlotte has 6 cherry candies.Count the total number of candies: She has a total of 6 (cherry) + 3 (grape) + 3 (lime) = 12 candies.Calculate the probability: The probability of drawing a cherry candy is 6 (favourable outcomes) / 12 (total outcomes) = 0.5.Round to the nearest hundredth: Since 0.5 is already a decimal to the nearest hundredth, the final probability is 0.50.Therefore, the probability that Charlotte will pull a cherry candy out of the bag is 0.50 (or 50%).
Select the graph of the solution set that would represent the following expression.
3(x - 2) = 5 (x + 1)
Answer:
The solution for the expression is:
[tex]x=-\frac{11}{2}[/tex]
Step-by-step explanation:
Given expression:
[tex]3(x-2)=5(x+1)[/tex]
To graph the solution set.
Solution:
We will first solve for [tex]x[/tex] to find the solution for the expression.
We have:
[tex]3(x-2)=5(x+1)[/tex]
Using distribution:
[tex]3x-6=5x+5[/tex]
Adding 6 both sides.
[tex]3x-6+6=5x+5+6[/tex]
[tex]3x=5x+11[/tex]
Subtracting both sides by [tex]5x[/tex].
[tex]3x-5x=5x-5x+11[/tex]
[tex]-2x=11[/tex]
Dividing both sides by 2.
[tex]\frac{-2x}{-2}=\frac{11}{-2}[/tex]
∴ [tex]x=-\frac{11}{2}[/tex]
The correct graph that represents the solution is given below.
At the baseball game, Adam bought 3 hot dogs and 2 sodas for $11. Four innings later, he purchased 2 hot dogs and 3 sodas for $10.25. Wat was the cost of a soda
Answer: the cost of one Soda was $1.75
Step-by-step explanation:
Let x represent the cost of one hot dog.
Let y represent the cost of one Soda.
At the baseball game, Adam bought 3 hot dogs and 2 sodas for $11. It means that
3x + 2y = 11 - - - - - - - - - - 1
In a later time, he purchased 2 hot dogs and 3 sodas for $10.25. It means that
2x + 3y = 10.25 - - - - - - - - -2
Multiplying equation 1 by 2 and equation 2 by 3, it becomes
6x + 4y = 22
6x + 9y = 30.75
Subtracting, it becomes
- 5y = - 8.75
y = - 8.75/- 5
y = 1.75
Substituting y = 1.75 into equation 1, it becomes
3x + 2 × 1.75 = 11
3x + 3.5 = 11
3x = 11 - 3.5 = 7.5
x = 7.5/3 = 2.5
car traveled 576 mi averaging a certain speed. If the car had gone 8 mph faster, the trip would have taken 1 hour less. Find the average speed.
Answer:64mi/hour
Step-by-step explanation:
V=speed × time
V=s×t .....equation (1)
v=576
for taking one hour: t-1
speed is: s+8
From equation(1)
V=(s+8)(t-1)
(s+8)(t-1)=576
Expand the bracket
st-s+8t-8=576
Substitute the value of st which is 576
576-s+8t-8=576
Collect the like terms
-s+8t-8=0
s=8t-8
Subtitude into the value of s
576= (8t-8)×t
576=8t^2-8t
8t^2-8t=576
8t^2-8t-576=0 (divide both by 8)
t^2-t-72=0
By factorization method
Product is (-9 and 8)
(t-9)(t+8)=0
t=9 or t=-8
V=s×t
576=s×9
9s=576
s=576/9
s=64mi/hour
Daniel and Elizabech had to choose between making a 600-mile round trip by car or plane. Round-trip
airfare was $260 for each of them and would take 2 hours. Round-trip cab fare to the airport would add
$15. Driving their car would take 2 days each way and would add the cost of gas, food, and lodging.
Elizabeth estimated that gas would cost $60, that food would be $25 per day (4 days) for each of them,
and that lodging would be $48 for each night of the 2 nights they would stay in a motel. Find the total
cost for each mode of transportation.
Select one:
a. Car: $256.00Plane: $435.00
b. Car: $456.00Plane: $535.00
C. Car: $356.00Plane: $535.00
Answer:
C
Step-by-step explanation:
Final answer:
Traveling by car would cost a total of $356, while traveling by plane would total $535. These costs include expenses for gas, food, and lodging when traveling by car, and the airfare and cab fare when traveling by plane. Therefore, Option c is the correct answer.
Explanation:
To find the total cost for each mode of transportation for Daniel and Elizabeth, one must calculate the expenses for both the car trip and the plane trip.
Cost by Car:
Gas: $60
Food: $25 per day for 4 days for 2 people = $200 ($25 x 4 days x 2 people)
Lodging: $48 per night for 2 nights = $96 ($48 x 2 nights)
Total Car Cost: $60 (gas) + $200 (food) + $96 (lodging) = $356
Cost by Plane:
Round-trip airfare for two: $260 per person x 2 = $520
Round-trip cab fare: $15
Total Plane Cost: $520 (airfare) + $15 (cab) = $535
Comparing both options, traveling by car would cost $356, and by plane, it would cost $535. Therefore, Option C is the correct answer.
For what value of x is the equation 2^2x+7 = 2^15 true?
Answer:
x = 4
Step-by-step explanation:
We assume your equation is intended to be ...
2^(2x+7) = 2^15
Equating exponents gives ...
2x +7 = 15
2x = 8 . . . . . . subtract 7
x = 4 . . . . . . . divide by 2
The value of x is 4.
The equation 2^2x+7 = 2^15 is solved by equating the exponents, simplifying the equation to find x, resulting in x = 4.
Explanation:In the given question, you're dealing with an equation in the form of 22x+7 = 215. We can solve such problems by applying the rule that if ax = ay, then x = y.
Here the base for both the sides of equation is 2, thus 2z where x can be equated on both sides.
Comparing both sides of the equation, we get: 2x + 7 = 15.
To isolate x, we subtract 7 from both sides, therefore, x = (15 – 7) / 2 => x = 4.
So the solution to the equation 22x+7 = 215 is x = 4.
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Simplifying an Expression with the Numerator and the Denominator Raised to a Power
Answer:
The answer to your question is the second option [tex]\frac{1}{x^{48}y^{36}z^{6}}[/tex]
Step-by-step explanation:
Expression
[tex][\frac{(x^{2}y^{3})^{-2}}{(x^{6}y^{3}z)^{2}}]^{3}[/tex]
Process
1.- Divide the fraction in numerator and denominator
a) Numerator
[(x²y³)⁻²]³ = (x⁻⁴y⁻⁶)³ = x⁻¹²y⁻¹⁸
b) Denominator
[(x⁶y³z)²]²= (x¹²y⁶z²)³ = x³⁶y¹⁸z⁶
2.- Simplify like terms
a) x⁻¹²x⁻³⁶ = x⁻⁴⁸
b) y⁻¹⁸y⁻¹⁸= y⁻³⁶
c) z⁻⁶
3.- Write the fraction
[tex]\frac{1}{x^{48}y^{36}z^{6}}[/tex]
Answer:
First, Second, and fourth answers :)
Step-by-step explanation:
Question 3 1 10 (1 point)
Question Attempt 1 of Unlimited
Incorrect
Your answer is incorrect
The diameter, D. of a sphere is 12.2 mm Calculate the sphere's volume, V.
Use the value 3.14 for 11, and round your answer to the nearest tenth (Do not round any intermediate computations.)
Save For Later
Recheck
Answer:
V≈950.3
Step-by-step explanation:
d = 12.2mm
r = 1/2 d = 6.1
V = 4/3 Pi r^3
V = 1.33 (3.14) (6.1)^3
V = 950.3
A 16 inch candle is lit and burns at a constant rate of 1.1 inches per hour. Let t represent the never of hours that have elapsed since the candle was lit.
a) write an expression in terms of t that represents the number of incrhs that have burned from the candle since it was lit.
b) write an expression in terms of t that represents the remaining length of the candle (in inches).
Answer:
(a) Number of inches that have burned from the candle since it was lit is (1.1t) inches
(b) The remaining length of the candle is (16 - 1.1t) inches
Step-by-step explanation:
(a). Length of candle before it was lit = 16 inches
Constant rate at which at which candle burns = 1.1 inches per hour
Let t represent the number of hours that have elapsed since the candle was lit
In 1 hour, 1.1 inches of the candle burned
Therefore, in t hours, (1.1t) inches of the candle would have burned since the candle was lit
(b) Remaining length of candle = length of candle before it was lit - length of candle that have burned = 16 inches - 1.1t inches = (16 - 1.1t) inches
Running at an average rate of 4 meters per second, a sprinter ran to the end of a track. The sprinter then jogged back to the starting point at an average rate of 2 meters per second. The total time for the sprint and the jog back was 2 minutes 6 seconds. Find the length of the track.
Step-by-step explanation:
Let l be the length of track.
Running speed = 4 m/s
Jogging speed = 2 m/s
Total time taken = 2 minutes 6 seconds. = 126 seconds
That is
[tex]\frac{l}{4}+\frac{l}{2}=126\\\\0.75l=126\\\\l=168m[/tex]
Length of track is 168 meter
To find the length of the track, we need to calculate the time it took for the sprint and the jog back, and set up an equation using the formula for distance. Simplifying the equation will give us the length of the track. The length of the track is 168 meters.
Explanation:To find the length of the track, we need to use the formula for distance: distance = rate × time. Let's call the length of the track 'd' meters. The sprinter ran to the end of the track at 4 meters per second, so the time it took for the sprint is d/4 seconds. The jog back to the starting point at 2 meters per second takes a time of d/2 seconds. And the total time given is 2 minutes 6 seconds, which can be converted to seconds as 126 seconds. So we can set up the equation: d/4 + d/2 = 126.
Simplifying the equation, we can multiply each term by 4 to get d + 2d = 504. Combining like terms gives us 3d = 504. Dividing both sides by 3, we find that the length of the track is d = 168 meters.
Therefore, the length of the track is 168 meters.
Learn more about Calculating distance and time here:https://brainly.com/question/33857419
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In the sales comparison approach, using comparables that are five and 15 years old when appraising a subject that is 10 years old is an example of what?
Final answer:
In the sales comparison approach, using comparables of different ages requires adjustments for age or vintage to estimate the accurate value of the subject property considering physical and economic differences.
Explanation:
In the sales comparison approach, the use of comparables that vary significantly in age compared to the subject property is an example of adjusting for age or vintage. When appraising a subject property that is 10 years old, by using comparables that are five and 15 years old, an appraiser is attempting to account for differences in physical deterioration, functional obsolescence, and external obsolescence that may exist. A key part of this approach is applying adjustments to the comparables to reflect these differences, thereby arriving at a more accurate value for the subject property.
It is important to ensure that the base year used for comparison is consistent, and adjustments are made for any significant differences in market conditions or property features. The age adjustment is just one of many adjustments that might be made, including location, size, and condition. This process requires careful consideration and professional judgment to ensure that the end value is reflective of the current market.
What is the weight per cm?
Answer:
2/5 g/cm
Step-by-step explanation:
When you want to know "A per B", divide the given quantity of A by the corresponding quantity of B. ("Per" essentially means "divided by".)
It can be convenient to choose table values that make the division easy:
12 g/(30 cm) = 4/10 g/cm = 0.4 g/cm
20 g/(50 cm) = 2/5 g/cm . . . . . . . . . . . . . same as 0.4 g/cm
Find the measure of the exterior angle
Answer:
The answer to your question is a ) 127° b) 80°
Step-by-step explanation:
a) We have to consider that the sum of the interior angles in a triangle equals 180°.
Then,
89 + (5x - 7) + [180 - (14x + 1)] = 180
Simplification
89 + 5x - 7 + 180 - 14x - 1 = 180
5x - 14x = 180 - 89 + 7 - 180 + 1
- 9x = -81
x = -81 / -9
x = 9
Exterior angle = 14(9) + 1
= 127°
b) The process is the same that the previous problem
30 + (4x + 2) + [180 - (8 + 6x)] = 180
Simplification
30 + 4x + 2 + 180 - 8 - 6x = 180
4x - 6x = 180' - 30 - 2 + 8 - 180
-2x = -24
x = -24/-2
x = 12
The measure of the external angle is = 8 + 6(12)
= 8 + 72
= 80°
Can someone please help me with my algebra fraction homework Page's 8,9 and 10. Thank You!
Answer:
8. A
9. C
10. A
Given that lines a and b are parallel, what angles formed on line a when cut by the transversal are congruent with ∠7?
Answer:
∠2 and ∠3
Step-by-step explanation:
Given:
lines a and line b are parallel and cut by transversal.
We need to find the which angles from line a are congruent to ∠7
Solution:
Now we know that;
line a║line b , So by corresponding angle postulate which states that;
"When two parallel lines are cut by a transversal , the resulting corresponding angles are congruent."
so we can say that;
∠2 ≅ ∠6
Also by Vertical angle theorem which states that;
"If two angles are vertical angles, then they are congruent ."
so we can say that;
∠2 ≅ ∠3 and ∠6 ≅ ∠7
So by Transitive Property of Congruence which states that;
When [tex]a \cong b\ \ \ and \ \ \ b\cong c \ \ \ so \ \ \ a\cong c[/tex]
so we can say that;
∠2 ≅ ∠3 ≅ ∠6 ≅ ∠7
Hence measure ∠2 and ∠3 are congruent to measure ∠7.
Answer: it’s C
Step-by-step explanation:
Assigned Media Question Help Determine whether the following probability experiment represents a binomial experiment and explain the reason for your answer. An experimental drug is administered to 180180 randomly selected individuals, with the number of individuals responding favorably recorded.
Answer:
Yes ,it represents a binomial experiment.
Step-by-step explanation:
In order for a probability experiment to represent a binomial experiment ,there are three conditions.
1) There should be a fixed number of trials.
2) Trials should be independent.
3)Each trial can result in two outcomes.
In this experiment ,there is a fixed number of trial ,since it is administered to 180180 individuals.
Outcome on an individual does not affect the outcome of others.
Individuals respond as favorably or not ,so it can be reduced to two outcomes.
All conditions are met, so it can be considered as binomial experiment.