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Chapter 1: Q 122. (page 39)

In the following exercises, evaluate each expression.

y+z2when y=-3 andz=15

Short Answer

Expert verified

The value is 144.

Step by step solution

01

Step 1. Given Information:

The given expression is y+z2and the value of the variables are y=-3and z=15.

02

Step 2. Substitute the values: 

Substitute -3for yand 15 for zinto the given expression, y+z2.

-3+152

03

Step 3. Perform Addition.

Add -3and 15 inside the parentheses.

role="math" localid="1644671739723" -3+152=122

04

Step 4. Calculate the exponent.

Calculate the exponent using the definition of exponential notation, an=a路a路鈰�路a铃�nfactors.

122=1212=144

05

Step 5. Conclusion:

The value obtained is 144.

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