3 years ago

A plane flies the 700 miles from Atlanta to Detroit in 11/4 hours. What is the plane's average air speed, in miles per hour?

Mathematics

1 answer:

Lynna [10]3 years ago

4 0

The answer is 15.....

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Step-by-step explanation: Subtract 257 & 162 to get your answer :)

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To the nearest tenth, find the perimeter of ABC with vertices A(-1,4), B(-2,1) and C(2,1). show your work

liubo4ka [24]

we have to firstly apply the distance formula to find the length of sides of the triangle

distance formula = $\sqrt{(x_{2} -x_{1})^2 +(y_{2}- y_{1})^2}$

So length AB = $\sqrt{(-2-(-1))^2+(1-4)^2}= \sqrt{1 +9}=\sqrt{10}$

BC= $\sqrt{(2-(-2))^2+(1-1)^2}= \sqrt{16+0}=4$

AC = $\sqrt{(2-(-1))^2+ (1-4)^2}= \sqrt{9+9}=\sqrt{18}=3\sqrt{2}$

Now perimeter = AB+BC+AC = $\sqrt{10}+4+3\sqrt{2}$

Plug in calculator

perimeter= 11.4 units

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3 years ago

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Step-by-step explanation:

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2 years ago

Solve x/2 - 3 = 7<br> A. 5<br> B. 10<br> C. 20<br> D. 40

12345 [234]

Answer:

The answer is C.

Step-by-step explanation:

Add 3 to both sides and you will get x/2=10. Multiply by the reciprocal on both sides making x=20.

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3 years ago

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Find the circumference of the circle if the radius is 4 inches

Kitty [74]

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Step-by-step explanation:

C = d( $\pi$ )

d = r(2) in this case 4(2) = 8 = d

so 8( $\pi$ ) = C

C ≈ 25.13

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3 years ago

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