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Write the power in words and as repeated multiplication. Then evaluate the power.
0.25

Short Answer

Expert verified

The power in the words can be expressed as 0.2 raised to the fifth power.

As a repeated multiplication, it can be expressed as 0.25=0.20.20.20.20.2.

The value of the power is 0.00032.

Step by step solution

01

– Concept of exponent

In the expression ax,a is the base and x is the exponent.

The power is the result of repeated multiplication of the same factor.

The expression aximpliesthat a has been used as factor x times.

02

Example of exponent form

For example, write the product 5555in exponent form.

In this example, factor 5 is multiplied 4 times.

So, the repeated multiplication 5555 can be expressed in exponent form as 54.

03

Express the power in words

Observe that in the given power, the base 0.2 has an exponent 5 over it.

So, in words it can be expressed as 鈥0.2 raised to the fifth power鈥.

04

Express the power as repeated multiplication

Observe that in the given power, the base 0.2 has an exponent 5 over it.

So, the factor 0.2 is multiplied to itself five times. That is,

0.25=0.20.20.20.20.2

Thus, the power in repeated multiplication is 0.25=0.20.20.20.20.2.

05

Evaluate the power

To evaluate the power, write it in the form of repeated multiplication and multiply the factors from left to right as shown below

(0.2)5=(0.2)(0.2)(0.2)(0.2)(0.2)=0.00032

Thus, the value of the power is 0.00032.

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