3 years ago

Which of the following is a rational number?

Mathematics

1 answer:

Soloha48 [4]3 years ago

8 0

Answer:

Square Root of 81

Step-by-step explanation:

9 times 9 = 81

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dezoksy [38]

a) The speed of car was 60 mph.

b) The speed of car was 45 mph.

Step-by-step explanation:

Given,

a = actual skid marks

p = test skid marks

Formula;

$s=30*\sqrt{\frac{a}{p}}\\$

a) a = 144 feet, p = 36 feet

Putting in formula;

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The speed of car was 60 mph.

b) a = 153 feet, p = 68 feet

Putting in formula;

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The speed of car was 45 mph.

Keywords: substitution, speed

Learn more about substitution at:

#LearnwithBrainly

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