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stepan [7]
3 years ago
6

A running cheetah begins to slow down. For each meter the cheetah travels, its speed changes by −3.4 kilometers per hour. The ch

eetah travels a total of 21.5 meters.
What is the total change in the cheetah's speed during this time?

Drag and drop the correct answer into the box.

73.1.
71.9.
-71.9.
-73.1.
Mathematics
2 answers:
suter [353]3 years ago
7 0

Answer: 73.1. I took the quiz

Alexeev081 [22]3 years ago
3 0
<span>Δv = -3.4 km/h/m * 21.5 m = -73.1 km/h</span>
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Solve for x, given the equation Square root of x-5+7=11
denis-greek [22]

\sqrt{x-5+7} = 11\\x-5+7 = 11^2\\x-5+7 = 121\\x + 2 = 121\\x = 119

Check the answer:

\sqrt{119-5+7} \\\sqrt{114+7} \\\sqrt{121} \\11

This answer is correct,

x = 119

6 0
3 years ago
A scientist collected four water samples from local ponds. Each sample was the same size and he collected 2.6 liters in all. Wha
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Answer: 0.65 Liters

Steps:

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3 0
3 years ago
Given (21,7) and (x,<br> 1), find all x such that the distance between these two points is 17.
Dmitriy789 [7]

Answer:

21+/-sqrt(253)=x

So one value for x is 21+sqrt(253)

and another is 21-sqrt(253)

Problem:

Given (21,7) and (x,1), find all x such that the distance between these two points is 17.

Step-by-step explanation:

Change in x is x-21

Change in y is 7-1=6

distance^2=(change in x)^2+(change in y)^2

17^2=(x-21)^2+(6)^2

289=(x-21)^2+36

Subtract 36 on both sides:

289-36=(x-21)^2

253=(x-21)^2

Take square root of both sides:

+/-sqrt(253)=x-21

Add 21 on both sides:

21+/-sqrt(253)=x

6 0
3 years ago
How can you use a number line to order rational numbers? Give an example.
Margaret [11]

Yes use a number line cuz it'll help you

3 0
3 years ago
The area of the rectangle shown is 200 square units. Find the value of x?
Stels [109]

Answer:

x=40

Step-by-step explanation:

8(1/2x + 5) = 200

4x + 40 = 200

4x = 160

x = 40

6 0
3 years ago
Read 2 more answers
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