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3 years ago

5

Mr Diaz decreased the speed of his car by 30 miles per hour over a period of 10 seconds. What is the average change in the speed

each second?

1 answer:

Allisa [31]3 years ago

4 0

Divide 30 by 10. 30mph/10seconds = 3mph/seconds

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How to solve 2X^2+Y^2 = X^2-Y^2

arlik [135]

$2x^2+y^2 = x^2-y^2\\\\
2x^2 - x^2 + y^2 + y^2 = 0\\\\
x^2 + 2y^2=0\\\\
x^2 = 0~~~\Longrightarrow~~~\boxed{x=0}\\\\
2y^2 = 0~~~\Longrightarrow~~~y^2 = 0~~~\Longrightarrow~~~\boxed{y=0}\\\\

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3 years ago

Find the area of the regular polygon shown. Round your answer to the nearest tenth if necessary.

andriy [413]

Answer:

The answer is either B or D.

Step-by-step explanation:

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3 years ago

<img src="https://tex.z-dn.net/?f=solve%20for%20%22m%22%20t%3D%5Cfrac%7Bms%7D%7Bm%2Bn%7D" id="TexFormula1" title="solve for &quo

dalvyx [7]

Answer:

$\boxed{\sf \ \ \ m = -\dfrac{tn}{t-s} \ \ \ }$

Step-by-step explanation:

Hello,

let s assume that m+n is different from 0

we have this equation and we need to find m as a function of t, s, and n

$t=\dfrac{ms}{m+n}$

<=>

$(m+n)*t=ms\\\\ tm+tn=sm\\ (t-s)m = -tn\\ m = -\dfrac{tn}{t-s}$

for t-s different from 0, so t different from s

hope this helps

4 0

3 years ago

What is the value of x?<br><br> x= ___ °

JulsSmile [24]

Answer:

80°

Explanation:

All angles inside a triangle must add up to 180°

6 0

3 years ago

(Please help)Choose the correct answer and please explanation each (Brainliest)

Vesnalui [34]

Answer:

1. C

2. D

3. C

Explanation:

1. Girls = 12 plus twice the number of boys, so C. y = 12 + 2x.

2. You have to see which point has the second value being greater than the first value:

A) -1 > -2 is not true

B) 0 > 1 is not true

C) 2 > 3 is not true

D) 8 > 4 is true, so it's D

3. Add the two values and see if it's less than 5

A) -1-4 < 5 is true

B) 0 + 4 < 5 is true

C) 1 + 7 < 5 is not true, so this is the answer

D) 2 + 2 < 5 is true

3 0

3 years ago