Answer:
9
Step-by-step explanation:
because 3+6=9 so he is 9 miles from his starting point
Please help me!!
I have a large, square shaped family room that measures 27 feet on a side. The carpet I like costs $7.99 per square yard. How much will it cost to buy this carpet for my family room?
Thank you!
Answer:
$215.73
Step-by-step explanation:
take $7.99 and multiply it by 27 to get $215.73
simplify 3a+2b+5a-6b
Answer:
8a -4b
Step-by-step explanation:
3a+2b+5a-6b
Combine like terms
3a+5a = 8a
2b-6b = -4b
Add them back together
8a -4b
Answer:
[tex]8a - 4b[/tex]
Step-by-step explanation:
Step 1: Combine like terms
[tex]3a + 2b + 5a - 6b[/tex]
[tex](3a + 5a) + (2b - 6b)[/tex]
[tex]8a - 4b[/tex]
Answer: [tex]8a - 4b[/tex]
Simplify 3 ^4. -------------------------------------------------------------------
Answer:81
Step-by-step explanation:
3x3x3x3
Answer:81
Step-by-step explanation:
3.3.3.3=81
The length of a rectangle is one foot more than twice it’s width. if the area of the rectangle is 300 ft.² find the dimensions of the rectangle
Answer:
Length= 12 ft
Width= 25 ft
Step-by-step explanation:
We will use the area of the rectangle formula to solve this question. The formula is: [tex]Area= length* width[/tex]
Let, the width of the rectangle is x, so the length is one foot more than twice it’s width, and is written as:
width= 2x+1
Now the area of the rectangle is given as:
300 [tex]ft^2[/tex]
So using the formula of the area of a rectangle, we get:
[tex]Area= length* width\\\Rightarrow 300= x(2x+1)\\\Rightarrow 2x^2+x-300=0\\\Rightarrow x=\frac{-1 \pm \sqrt{1^2-4 \cdot \:2\left(-300\right)}}{2\cdot \:2}\\\Rightarrow x=12,\:x=-\frac{25}{2}\\[/tex]
But we will take only positive value of x, as length can't be negative.
So the dimensions of the rectangle are:
Length= 12 ft
Width= 25 ft
To solve for the dimensions of the rectangle with an area of 300 square feet and a length one foot more than twice its width, you begin with the formula for the area of a rectangle. After setting up the quadratic equation, solving it yields a width of 10 feet and a length of 21 feet, making the dimensions 10 feet by 21 feet.
Explanation:To find the dimensions of a rectangle where the length is one foot more than twice its width, and the area is 300 square feet, you set up two equations based on the given information.
Let the width be w feet. Then, the length l would be 2w + 1 feet. The area A of a rectangle is given by the formula A = w × l. Substituting the known area and the expression for l, we have 300 = w × (2w + 1).
To solve for w, we should solve the quadratic equation w^2 + w - 150 = 0. Factoring the quadratic, we get (w - 10)(w + 15) = 0. This gives us two possible solutions for the width: w = 10 or w = -15. Since a negative width doesn't make sense in this context, we use w = 10 feet. The length is thus 2 × 10 + 1 = 21 feet.
Therefore, the dimensions of the rectangle are 10 feet by 21 feet.
Learn more about Rectangle Dimensions here:
https://brainly.com/question/31677552
#SPJ2
HELP PLEASE I WILL MARK YOU AS A BRAINLIEST PLEASE!!! Thank you :D
so the right ans is of option C
ABC is an obtuse triangle. Given that CB = 20, the measure of A = 30°, and the measure of B = 45°, which of the expressions listed would be used to find how long CA is? (Note: For ABC, where a, b, and c are the lengths of the sides opposite A, B, and C, respectively, SinA/a=SinB/b=SinC/c.)
1. 45sin20/sin30
2. 20sin30/sin45
3. 20sin45/sin30
4. sin45/20sin30
Answer:
option 3
Step-by-step explanation:
Using the Sine rule in Δ ABC, that is
[tex]\frac{a}{sinA}[/tex] = [tex]\frac{b}{sinB}[/tex], that is
[tex]\frac{20}{sin30}[/tex] = [tex]\frac{CA}{sin45}[/tex] ( cross- multiply )
CA × sin30° = 20 × sin45° ( divide both sides by sin30° )
CA = [tex]\frac{20sin45}{sin30}[/tex] → (3)
Luis has $20.He buys 4 cans of tennis balls and gets $8 back as change.How much did one can of tennis balls cost?
Answer: 3.
Basically, whaat I did was just look at the question, 20 - 8 would be 12. 12 divided by 4 would be 3.
Answer:
$3
Step-by-step explanation:
Equation: 20≥4x+8
20≥4x+8
First Subtract 8 on both sides.
20-8≥4x+8-8
12≥4x
Divide the 4.
3≥x
A circle has a radius of 3. An Arc in this circle has a central angle of 20 degrees. What is the length of the arc?
Answer:
Step-by-step explanation:
L=®/3602πr
L=20/360×2×3.14×3
L=1.04
5c – 9d + d + 7 – 12c - 41
Answer: -7c - 10d - 34
Step-by-step explanation:
5c – 9d + d + 7 – 12c - 41
Combine like terms
5c - 12c -9d + d -41 + 7
= -7c - 10d - 34
I hope this helps.
A baby monitor picks up signals within a 50 meter radius. How many square meters of coverage does the baby monitor provide?
The total coverage does the baby monitor provides is 7854 square meters and this can be determined by using the formula of the area of a circle.
Given :
A baby monitor picks up signals within a 50-meter radius.
The following steps can be used in order to determine the total square meters of coverage does the baby monitor provide:
Step 1 - The formula of the area of the circle can be used in order to determine the total square meters of coverage does the baby monitor provides.
Step 2 - The formula of the area of the circle is given below:
[tex]\rm Area = \pi r^2[/tex]
where r is the radius of the circle.
Step 3 - Now, substitute the value of the radius in the above expression.
[tex]\rm Area = \pi \times (50)^2[/tex]
Step 4 - Simplify the above expression in order to determine the total square meters of coverage does the baby monitor provides.
Area = 7854 square meters
For more information, refer to the link given below:
https://brainly.com/question/1238286
The baby monitor provides coverage of 7854 square meters.
A baby monitor picks up signals within a 50 meter radius. To determine the coverage area, you need to find the area of a circle with this radius.
Use the formula for the area of a circle, A = πr², where r is the radius:
Given radius, r = 50 metersPlug into the formula: A = π × (50 meters)²Calculate: A = 3.14159 × 2500Result: A ≈ 7854 square metersTherefore, the baby monitor provides coverage of approximately 7854 square meters.
Sharing kicks a ball from the ground into the air with an upward velocity of 64ft per second. The function h=-16t^2+64t models the height h, in feet, of the ball at time t, in seconds. When will the ball reach the ground again.
h = -16t^2 + 64t
When the ball reaches the ground, h will equal zero.
0 = -16t^2 + 64t
16t^2 = 64t
16t = 64
t = 4 seconds
Answer:
the first answer the other person put is the correct one
Step-by-step explanation:
just Dubble checked it
Help meeeeeeeeee now please
Answer:
20/13
Step-by-step explanation:
(12/13)/(3/5)=
(12/13)(5/3)=
20/13
Please help with this question
I need help with a math problem 6838 multiplied by 2830 then that answer divided by 2
Answer:
9675770
Step-by-step explanation:
Hope this helps
A lawn is in the shape of a right triangle with a perimeter of 215 feet. The lengths of the sides of the triangle are each multiplied by 7. What is the perimeter of the new triangle?
A. 1505 ft.
B. 6100 ft.
C. 7120 ft.
D. 8640 ft.
Perimeter of the new triangle is 1505 ft
Step-by-step explanation:
Step 1: Given the perimeter of the right triangle = 215 ft. Find new perimeter.Perimeter of the triangle = sum of the sides = a + b + c = 215
Each side is multiplied by 7, so new sides are 7a, 7b, 7c
⇒ New perimeter = 7a + 7b + 7c = 7(a + b + c) = 7 × 215 = 1505 ft
Use the distributive property to write an equivalent expression: -1(c-2)
Answer:
-c +2
Step-by-step explanation:
-1(c-2)
Distribute
-1*c -1*(-2)
-c +2
At a particular restaurant, each onion ring has 45 calories and each slider has 325 calories. A combination meal with onion rings and sliders is shown to have 920 total calories and 3 times as many onion rings as there are sliders. Write a system of equations that could be used to determine the number of onion rings in the combination meal and the number of sliders in the combination meal. Define the variables that you use to write the system.
Answer:
There were 6 onion rings and 2 slider in the combination meal.
Step-by-step explanation:
Let x be the number of onion rings and y be the number of slider.
Calories in one onion ring = 45 calories
Calories in one slider = 325 calories
Total number of calories = 920
Thus, we can write the equation:
[tex]45x + 325y = 920[/tex]
There are 3 times as many onion rings as the sliders.
Thus, we can write the equation:
[tex]x = 3y[/tex]
Solving the two equation by substitution method, we get,
[tex]45(3y) + 325y = 920\\460y = 920\\y = 2\\x = 3y = 3(2) = 6[/tex]
Thus, there were 6 onion rings and 2 slider in the combination meal.
The system of equations that can be used to determine the required values is:
45x + 325y = 920 equation 1
3x = y equation 2
Where:
x = total number of onions
y = total number of sliders
In order to determine the number of onions and sliders in the combination meal, equation 1 and 2 have to be solved together in order to determine the required values. This is known as solving equations simultaneously. They can be solved using two methods:
elimination methodsubstitution method
To learn more about simultaneous equations, please check: brainly.com/question/23589883
Please hurry it’s urgent
You have 3 spreads, 4 meats, and 3 kinds of bread. How many different sandwiches can you make using one of each ingredient?
36
15
10
24
Answer:
36
Step-by-step explanation:
This questions tests for the fundamentals of counting.
Let's say event [tex]x_i[/tex] can be done in X ways and event [tex]y_i[/tex] can be done in Y ways, therefore the total number of ways [tex]x_i[/tex] and [tex]y_i[/tex] can be done is given as [tex]xy[/tex].
Applying this counting principle in our case, the total different sandwiches is obtained as the product of the individual sandwich types.
[tex]Total=s\times m\times b\\=3\times 4 \times 3\\=36[/tex]
36 different sandwiches can be made.
NEED HELP ASAP!! Fill in the chart with the correct end behavior. Enter your answer as either infinity or negative infinity.
Answer:
Column 1:
Positive infinity
Negative infinity
Column 2:
Negative infinity
Positive infinity
1. An inflatable beach ball has a circumference of 141.3 centimeters. What is the volume of the beach ball when fully inflated? Record your answers in cubic centimeters, round to the nearest whole number. Use 3.14 for pie.
2. Which exponent can be substituted for the letter x to make the equation true?
4^x=64
1) The volume of the beach ball when fully inflated is 47690 cubic centimeters.
2) The value of x is 3.
Step-by-step explanation:
It is given that, an inflatable beach ball has a circumference of 141.3 centimeters.
1) To find the volume of the beach ball :
Use the formula for volume of sphere to find the volume of beach ball when fully inflated.
Volume of sphere = (4/3)πr³
where, r is the radius of the sphere and π has the default value of 3.14.
To find the radius :
The given circumference is 141.3 = 2πr
⇒ r = 141.3 / 2π
⇒ r = 141.3 / (2×3.14)
⇒ r = 141.3 / 6.28
⇒ r = 22.5
Now, substituting r= 22.5 in the volume of sphere formula
Volume of sphere = (4/3) ×3.14× (22.5)³
⇒ 4/3 ×3.14 ×11391
⇒ (12.56×11391) / 3
⇒ 47690 cubic centimeters
The volume of the beach ball when fully inflated is 47690 cubic centimeters.
2) The given equation is [tex]4^{x} = 64[/tex]
⇒ 64 = 4×4×4
⇒ 64 = 4³
Therefore, the value of x is 3.
Final answer:
The volume of the beach ball when fully inflated is approximately 48,000 cubic centimeters. To find the exponent x that makes the equation 4^x=64 true, we see that x must equal 3, since 64 is 4 cubed.
Explanation:
To calculate the volume of an inflatable beach ball with a circumference of 141.3 centimeters, we first need to determine its radius. The formula connecting circumference (C) and radius (r) of a sphere is C = 2πr. Using 3.14 for π, we can rearrange to find r: r = C / (2π).
r = 141.3 cm / (2 × 3.14)
= 141.3 cm / 6.28
= 22.5 cm (approximately)
Now, we can use the formula for volume of a sphere which is V = (4/3)πr³. Plugging in the value of the radius, we get:
V = (4/3)× 3.14 × (22.5)³
= (4/3)× 3.14 × (11,390.625 cm³)
= 48,000 cm³ (approximately)
The volume of the beach ball is approximately 48,000 cubic centimeters when fully inflated, rounding to the nearest whole number.
For the second part of the question, we want to find the exponent x that equates 4 raised to the power x to 64. Since 64 is 4 cubed (or 4³), we can easily see that x = 3 to make the equation 4³=64 true.
A zookeeper predicted that the weight of a newborn lion would be 2.8 pounds.
When the zoo’s lion gave birth, the newborn weighed 3.5 pounds.
What is the zookeeper’s percent error? Round to the nearest percent.
There is 20% error in zookeeper's calculations.
Step-by-step explanation:
Given,
Approx weight of newborn lion = Approx value =2.8 pounds
Exact weight of newborn lion = Exact value = 3.5 pounds
Percent error = [tex]\frac{|approx-exact|}{exact}*100[/tex]
Percent error = [tex]\frac{|2.8-3.5|}{3.5}*100\\[/tex]
Percent error = [tex]\frac{|-0.7|}{3.5}*100[/tex]
Percent error = [tex]\frac{70}{3.5}[/tex]
Percent error = 20%
There is 20% error in zookeeper's calculations.
Final answer:
To find the zookeeper's percent error, subtract the predicted weight from the actual weight to find the absolute error, divide by the actual weight, multiply by 100, and round to the nearest percent. The percent error in predicting the weight of the newborn lion is 20 percent.
Explanation:
To calculate the zookeeper's percent error in predicting the weight of a newborn lion, we follow these steps:
Round to the nearest percent.
The zookeeper predicted the weight would be 2.8 pounds, but the actual weight was 3.5 pounds. So the absolute error is:
|Predicted Weight - Actual Weight| = |2.8 pounds - 3.5 pounds| = 0.7 pounds
Then, divide the absolute error by the actual weight:
0.7 pounds / 3.5 pounds = 0.2
Multiply by 100 to convert to a percentage:
0.2 × 100 = 20%
Since we round to the nearest percent, the zookeeper's percent error is 20 percent.
Which relationship describes angles 1 and 2?
Can't be 2 answers.
supplementary angles
complementary angles
adjacent angles
vertical angles
Answer:
Vertical angles
Step-by-step explanation:
Two non-adjacent angles formed by the intersection of two lines are called vertical angles.
Joe can run 100 m in 24 seconds so how long does it take to run to 2 kilometres
Answer:
2km = 8 minutes (480seconds) as 0.1km = 24seconds 1km =240 seconds.
Step-by-step explanation:
what is p(1 or 6) when rolling a number cube
Find the measure of the indicated angle to the nearest degree.
Step-by-step explanation:
Let the measure of required angle be x degree
[tex] \therefore \tan \: x = \frac{33}{56} \\ \\ \therefore \tan \: x = 0.589285714 \\ \\ \therefore \: x = {\tan}^{ - 1} (0.589285714) \\ \\ \therefore \: x = {\tan}^{ - 1} ( \tan \: 30.510237394 \degree) \\ \\ \huge \red{ \boxed{\therefore \: x = 31\degree}}[/tex]
Thus, first option is the correct answer.
To compare the economic values of several alternative payments, can any point in time be chosen as the focal date?
Answer:
yes
Step-by-step explanation:
The ratio between the present value and the future value will be the same for any present or future date, provided that the discount/interest rate is the same in each case.
Alternative cash flows projected to the same date will have the same ratio, regardless of the chosen date — again, provided that the discount/interest rate is the same in each case.
On a coordinate plane, a piecewise function has 2 lines. The first line has a closed circle at (negative 2, negative 2) and then goes up through (negative 4, 2) with an arrow instead of an endpoint. The second line has an open circle at (2, 1) and then goes up through (5, 4) with an arrow instead of an endpoint.
Which values are within the domain of the function? Check all that apply.
x = –6
x = –4
x = –2
x = 0
x = 2
x = 4
its A B C F
Answer:
-4, -2 and 4
Step-by-step explanation:
Consider x represents the input value,
Given,
In the piece-wise function,
The first line has a closed circle at (-2, negative 2) and then goes up through (-4, 2) with an arrow instead of an endpoint.
Thus, -4 ≤ x ≤ -2.
The second line has an open circle at (2, 1) and then goes up through (5, 4) with an arrow instead of an endpoint.
Thus, 2 < x ≤ 5.
Since domain of a function is all possible input values,
Therefore, domain = [-4,-2]∪(2,5]
-6 ∉ [-4,-2]∪(2,5]
-4 ∈ [-4,-2]∪(2,5]
-2 ∈ [-4,-2]∪(2,5]
0 ∉ [-4,-2]∪(2,5]
2 ∉ [-4,-2]∪(2,5]
4 ∈ [-4,-2]∪(2,5]
Hence, -4, -2 and 4 are within the domain of the function.
Answer:
The person who ask this question is right its ABCF
Step-by-step explanation:
What is the center of the data?
Number of Laps Around a Track
A dot plot going from 1 to 5. 1 has 8 dots, 2 has 6 dots, 3 has 4 dots, 4 has 2 dots, and 5 has 1 dot.
The center is
.
Answer:
2
Step-by-step explanation:
8+6+4+2+1 =21
Total 21 dots/observations
Centre at 11th dot which corresponds to 2
Number of Laps Around a Track. A dot plot going from 1 to 5, 1 has 8 dots, 2 has 6 dots, 3 has 4 dots, 4 has 2 dots, and 5 has 1 dot, the center is 2.
What is center?The location is sometimes alluded to as the data collection's "core." The two metrics that are most frequently used to identify the "center" of both the data are the mean (average) and the median. To find the weighted mean of 50 people, add up all 50 weights once more and divide by 50.
Order the data and locate the number that divides the information into two equal portions to determine the median weight of both the 50 individuals. Because it is unaffected by the specific numerical values of the outliers, the median is typically a better indicator of the center if there are extreme values or outliers. The most popular way to measure the center is with the mean.
8+6+4+2+1 =21
21 dots/observations
Centre at 11th dot which corresponds to 2
Therefore, the center is 2.
To learn more about center, here:
https://brainly.com/question/12547876
#SPJ3
The height of a puffin is 24.02 cm. Write this number in
expanded form.
Answer:
20+4+0.02
Step-by-step explanation:
You break down each number Then you need to "add" them Then finally you add them together to make sure you have the right answerThe height of a puffin in expanded form is [tex]\(2 \times 10^1 + 4 \times 10^0 + 0 \times 10^{-1} + 2 \times 10^{-2}\) cm[/tex].
To write the height of a puffin, which is 24.02 cm, in expanded form, we need to express each digit as a product of the digit and its corresponding power of 10. Starting with the leftmost digit:
- The first digit is 2, and it is in the tens place, so it is [tex]\(2 \times 10^1\)[/tex].
- The second digit is 4, and it is in the ones place, so it is [tex]\(4 \times 10^0\)[/tex] (since any number to the power of 0 is 1).
- The third digit is 0, and it is in the tenths place, so it is [tex]\(0 \times 10^{-1}\)[/tex]. Since it is multiplied by 0, this term contributes nothing to the total and can be omitted.
- The fourth digit is 2, and it is in the hundredths place, so it is [tex]\(2 \times 10^{-2}\)[/tex].
Putting it all together, we get the expanded form as:
[tex]\(2 \times 10^1 + 4 \times 10^0 + 0 \times 10^{-1} + 2 \times 10^{-2}\) cm.[/tex]