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3 years ago

WIL GIVE BRAINLIEST IF ANSWER FAST! Evaluate the expression 7x2y, when x = 4 and y = 2. 112 224 542 718

Mathematics

1 answer:

avanturin [10]3 years ago

4 0

Answer:

224

Step-by-step explanation:

Substitute x = 4 and y = 2 into the expression and evaluate

7x²y = 7 × 4² × 2 = 7 × 16 × 2 = 7 × 32 = 224.

Hope this helped you!

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3 years ago

A cyclist travels at distance of 400 meters in 120 seconds towards school, calculate his speed. (Show your work)

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we know that

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Part b) Find the velocity

we know that

Velocity is a vector quantity; both magnitude and direction are needed to define it

in this problem we have

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the velocity is $3.5\frac{m}{sec}\ North\ East\ (NE)$

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we know that

the acceleration is equal to the formula

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therefore

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the acceleration is $-\frac{7}{30}\frac{m}{sec^{2}}$

This is an example of negative acceleration

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3 years ago

Read 2 more answers