Johnny must learn more than 10 New Pl. Before the big game you're already learned for writing and recording that represents how many more players he needs to learn to reach his goal

Answers

Answer 1

Question is Incomplete; Complete question is given below;

Johnny must learn more than 10 new plays before the big game. He has already learned 4. Write and solve the inequality that represents how many more plays he needs to learn to reach his goal?

Answer:

The Inequality representing the more plays he needs to learn to reach his goal is [tex]x+4>10[/tex].

Johnny should learn more than 6 games to reach his goals.

Step-by-step explanation:

Given:

Number of plays to be learn [tex]>[/tex] 10

Number of plays already learned = 4

we need to write an inequality that represents how many more plays he needs to learn to reach his goal.

Solution:

Let the number of plays needed to learn more be 'x'.

So we can say that;

Number of plays already learned plus number of plays needed to learn more should be greater than total Number of plays to be learn.

framing in equation form we get;

[tex]x+4>10[/tex]

Hence the Inequality representing the more plays he needs to learn to reach his goal is [tex]x+4>10[/tex].

On solving the equality we get;

Subtracting both side by 4 we get;

[tex]x+4-4>10-4\\\\x>6[/tex]

Hence Johnny should learn more than 6 games to reach his goals.


Related Questions

Given that lines a and b are parallel, what angles formed on line a when cut by the transversal are congruent with ∠7?

Answers

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:

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

Answers

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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Josie took a long multiple choice test. The ratio of the questions she got incorrect to the number of problems she got correct was 4:9. If there were 65 questions on the test, how many did Josie get incorrect

Answers

Answer:20 incorrect questions

Step-by-step explanation: using the ratio formula

Add up the correct n incorrect

4+9= 13 is the total ratio

Incorrect answer ratio is 4

So to know the number of incorrect answer is

4/13* number of questions on the test

4/13* 65= 20 incorrect answer

Can someone please help me with my algebra fraction homework Page's 8,9 and 10. Thank You!

Answers

Answer:

8. A

9. C

10. A

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).

Answers

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

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

Answers

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.

Final 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.

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.

Answers

Length of track is 168 meter

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

Final answer:

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.

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Simplifying an Expression with the Numerator and the Denominator Raised to a Power

Answers

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:

The amount of pay Rachel will earn in an 8 hour shift if Rachel earns $3 more per hour than Leah's pay, .

Answers

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]

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

Answers

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.

Select the graph of the solution set that would represent the following expression.

3(x - 2) = 5 (x + 1)

Answers

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.

Thirty-eight is [tex]\frac{2}{5}[/tex] of what number?

Answers

Answer:

The number is 95.

Step-by-step explanation:

Solution,

Let the number be 'x'.

So, [tex]\frac{2}{5}[/tex] of 'x' = [tex]\frac{2}{5}x[/tex]

Now according to question, [tex]\frac{2}{5}x[/tex] is equal to 38.

So we can frame it as;

[tex]\frac{2}{5}x=38[/tex]

Now we solve it;

For solving it we will multiply both side by '5' using multiplication property and get;

[tex]\frac{2}{5}x\times5=38\times5\\\\2x=38\times5[/tex]

Now using division property, we will divide both side by '2' and get;

[tex]\frac{2x}{2}=\frac{38\times5}{2}\\\\x=19\times5=95[/tex]

Hence The number is 95.

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.

Answers

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.

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?

Answers

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

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

Answers

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

w is less than or equal to – 2 and greater than or equal to - 8
Use w only once in your inequality.

Answers

Answer:

-8 ≤w ≤-2

Step-by-step explanation:

Final answer:

The inequality -8 ≤ w ≤ -2 combines the given conditions into a single expression stating that the variable 'w' can take any value between -8 and -2 inclusive.

Explanation:

In mathematics, when a single variable needs to satisfy multiple inequalities, we can write it in a combined form. Your conditions state that 'w' is less than or equal to -2, and 'w' is also greater than or equal to -8. This can be combined into a single inequality as follows: -8 ≤ w ≤ -2. This inequality indicates that the variable 'w' can take any value from -8 to -2, inclusive.

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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

Answers

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

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.

Answers

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

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?

Answers

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.

How do you solve for 2-9|-8b+8|=-70?

Answers

Answer:

The solution for the given equation is 0 and 2.

Step-by-step explanation:

Given equation:

[tex]2-9|-8b+8|=-70[/tex]

To solve for [tex]b[/tex].

Solution:

In order to solve the given equation, we will first isolate the absolute value expression:

Step 1: Isolating the absolute value expression

[tex]2-9|-8b+8|=-70[/tex]

Subtracting both sides by 2.

[tex]2-2-9|-8b+8|=-70-2[/tex]

[tex]-9|-8b+8|=-72[/tex]

Dividing both sides by -9.

[tex]\frac{-9|-8b+8|}{-9}=\frac{-72}{-9}[/tex]

[tex]|-8b+8|=8[/tex]

Step 2: Set the value of the absolute value expression to positive and negative.

[tex]-8b+8=8[/tex]              and       [tex]-8b+8=-8[/tex]

Step 3: Solve for the unknown.

Solving for [tex]b[/tex].

Subtracting both sides by 8.

[tex]-8b+8-8=8-8[/tex]       and       [tex]-8b+8-8=-8-8[/tex]

[tex]-8b=0[/tex]                  and       [tex]-8b=-16[/tex]

Dividing both sides by -8.

[tex]\frac{-8b}{-8}=\frac{0}{-8}[/tex]          and       [tex]\frac{-8b}{-8}=\frac{-16}{-8}[/tex]

[tex]b=0[/tex]       and       [tex]b=2[/tex]     (Answer)

Thus, the solution for the given equation is 0 and 2.

What is [tex]x^{4} (x^{4} )[/tex]?
I will thank, comment and mark as Brainliest!

Answers

Answer:

The answer is x^8

Step-by-step explanation:

x^4(x^4)

=x^4*x^4

=(x*x*x*x)*(x*x*x*x)

=x*x*x*x*x*x*x*x

=x8

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

Answers

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

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 ?

Answers

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.

What is the weight per cm? ​

Answers

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

Your answer will be 2/5 g/cm it is correct ✨

Test scores were recorded for students in a statistics class. The scores for the first test had a standard deviation of 3.8 points. The scores from the second test had a standard deviation of 4.8 points. Choose the correct statement below.

1. The average test grade rose by 1 point
2. The scores of the second test were closer together than the first
3. The higher standard deviation of the second test indicates higher average scores on the second test than on the first
4. None of the above are true

Answers

Answer:

Step-by-step explanation:

The higher standard deviation of any data represents diversified data or data having more scattered value . Average value may be same for two samples of data having different standard deviation . So option one is incorrect. 3 rd option is also incorrect.

The scores of the second test were more widespread  than the first , because its standard deviation is more for second test. option 2 is in- correct .

none is correct.

Final answer:

None of the supplied statements are true. The standard deviation is a measure of dispersion from an average, showing the spread of test scores, not average scores or proximity of scores. Therefore, a higher standard deviation means scores were more dispersed, not closer together.

Explanation:

The correct statement is None of the above are true. The standard deviation is a measure of dispersion from an average. It reflects the variability or spread in a set of data. It does not provide information about the actual scores, their averages, or whether one test's scores were generally higher or lower than another's.

In this case, a standard deviation of 3.8 for the first test and 4.8 for the second test indicates that the test scores were more spread out around the mean on the second test compared to the first. It does not point to an increase in the average test grade. Furthermore, a higher standard deviation does not mean that the test scores were closer together; actually, it's the opposite – a higher standard deviation indicates that scores were more widely dispersed.

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For what value of x is the equation 2^2x+7 = 2^15 true?

Answers

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.

Final answer:

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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Find the measure of the exterior angle​

Answers

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°

Solve |2x - 2| < 8

A) { x| x < -3 or x > 5}

B) { x|-5 < x < 3}

C) { x|-3 < x < 5}

Answers

C
You split inequality into
2x-2>8 and 2x—2<-8
X>5. X<-3

A solid right pyramid has a square base with an edge length of s units and a height of h units. A solid right pyramid with a square base has an edge length of s units and a height of h units. Which expression represents the volume of the pyramid?

Answers

Answer:

The required expression is [tex]V=\dfrac{s^2h}{3}[/tex] units³.

Step-by-step explanation:

Consider the provided information.

The Volume square base pyramid is: [tex]V=\dfrac{a^2h}{3}[/tex]

Where a is the edge length and h is the height of the pyramid.

It is given that length of the side  is s units and height of the pyramid is h unit.

Substitute the respective values in the formula above

The Volume square base pyramid is:

[tex]V=\dfrac{s^2h}{3}[/tex]

Hence the required expression is [tex]V=\dfrac{s^2h}{3}[/tex] units³.

what is 32% of 240 PLEASE I WILL GIVE BRAINLIEST

Answers

Answer:

76.8

Step-by-step explanation:

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