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sveta [45]
3 years ago
10

Find the speed of a race car if it travels 5 miles in 2 minutes and 30 seconds

Mathematics
1 answer:
Tomtit [17]3 years ago
4 0
You first convert the 2 minutes and 30 seconds to 150 seconds.

Then, you take the 150s÷5m to get the number of seconds per mile.

The answer is 30s/m
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Henrique drew and labeled the net shown. He also labeled the areas of the left and right triangular sides.
Oksana_A [137]

Answer: SA=117.2\ in^2

Step-by-step explanation:

You need to remember the following:

1. The area of a rectangle can be calculated with the following formula:

A_r=lw

Where "l" is the length and "w" is the width.

2. The area of a triangle can be calculated with the following formula:

A_t=\frac{bh}{2}

Where "b" is the base and "h" is the height.

Use those formulas to find the area of each face.

<u> Area of the rectangle</u>

A_r=(10\ in)(4\ in)=40\ in^2

<u>Area of two triangles</u>

There are two equal triangles. Each one has a base  of 10 inches and a height of 5 inches. Then, their areas are equal:

A_{t1}=A_{t2}=\frac{(10\ in)(5\ in)}{2}=25\ in^2

The areas of the other two triangles (which are equal) are:

A_{t3}=A_{t4}=13.6\ in^2

Adding the areas of the faces, you get that the surface area of the rectangular pyramid is:

SA=40\ in^2+25\ in^2+25\ in^2+13.6\ in^2+13.6\ in^2\\\\SA=117.2\ in^2

3 0
3 years ago
Read 2 more answers
In February, Paul's electric bill was three dollars more then one-half his gas bill. If the electric bill was ninety-two dollars
USPshnik [31]

Answer:

49$

Step-by-step explanation:

7 0
3 years ago
Which of the f-values satisfy the following inequality? f+8≤12 Choose all answers that apply:
Vikki [24]
The answer would be A f = 4
5 0
3 years ago
-2(2x- _)+1=17-4x For what missing value is the equation an identity?
igor_vitrenko [27]
What’s grade are you?
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3 years ago
Use Green's Theorem to evaluate the line integral along the given positively oriented curve. C yex dx 2ex dy, C is the rectangle
Dennis_Churaev [7]

Answer:

2 ( e^3 + 1 )

Step-by-step explanation:

The path of the attached Rectangle is anti-clockwise

and the Integrand:  P( x, y ) dx +  q ( x , y ) dy

 P( x, y )  = ye^x

 q ( x , y ) = 2ex

hence :  dq/dx - dp/dy = 2e^x - e^x = e^x

attached below is the remaining  solution

using Green's theorem

7 0
3 years ago
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