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morpeh [17]
2 years ago
6

I need help with my geometry test review.

Mathematics
1 answer:
Alexus [3.1K]2 years ago
3 0

Answer:

is that high school? cuz it looks like 8th or 7th grade

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The function d(s) = 0.0056s squared + 0.14s models the stopping distance
victus00 [196]

Answer:

The car must have a speed of 25 kilometres per hour to stop after moving 7 metres.

Step-by-step explanation:

Let be d(s) = 0.0056\cdot s^{2} + 0.14\cdot s, where d is the stopping distance measured in metres and s is the speed measured in kilometres per hour. The second-order polynomial is drawn with the help of a graphing tool and whose outcome is presented below as attachment.

The procedure to find the speed related to the given stopping distance is described below:

1) Construct the graph of d(s).

2) Add the function d = 7\,m.

3) The point of intersection between both curves contains the speed related to given stopping distance.

In consequence, the car must have a speed of 25 kilometres per hour to stop after moving 7 metres.

4 0
2 years ago
Please answer A and B and give an explanation and show work. thank you!
NNADVOKAT [17]
Dont know a but b is 
75=100-2p
75 minus 100 = -25=-2p
-25/-2= p 
p=$12.50
4 0
3 years ago
What is the solution to this expression<img src="https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7Bx%5E%7B2%7D%20%5Ccdot%20t%7D%20%20%5Cf
ankoles [38]

Answer:

4/xt 3 sqaured

Step-by-step explanation:

6 0
3 years ago
How much water must be evaporated from 32 ounces of a 7% salt solution to make a 8% salt solution. Answer in ounces.
Nadya [2.5K]

You subtract 7% from 32=29.76
Then you subtract 8% from 29.76=27.379

7 0
3 years ago
A Norman window has the shape of a semicircle atop a rectangle so that the diameter of the semicircle is equal to the width of t
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<span> Norman window with a perimeter of 22 feet?</span>
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3 years ago
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