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liq [111]
3 years ago
15

Rewrite the expression in the form a^n a^5xa^-3

Mathematics
1 answer:
erik [133]3 years ago
6 0
<h3>Answer:   a^2</h3>

Work Shown:

I'm assuming the "x" means "multiply", and it is not a variable.

a^5 * a^(-3) = a^(5+(-3)) = a^(5-3) = a^2

The rule I'm using is

a^b*a^c = a^(b+c)

The base is always the same. We add the exponents.

The expression a^2 is in the form a^n with n = 2.

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A store has two different sizes of ice cream the smaller container cost 3.87 for 48 ounces the larger container cost 6.42 which
elena-14-01-66 [18.8K]

Consider the complete question is "A store has two different sizes of ice cream on sale this week. The smaller container costs $3.87 for 48 ounces. The larger container costs $6.42 for 128 ounces. which ice cream costs less per ounce?"

Given:

The smaller container costs $3.87 for 48 ounces.

The larger container costs $6.42 for 128 ounces.

To find:

Which ice cream costs less per ounce?

Solution:

We know that

\text{Cost per ounce}=\dfrac{\text{Total cost}}{\text{Number of ounces}}

Using this formula, we get

Per ounce cost of small container =\dfrac{3.87}{48}

                                                         =0.080625

                                                         \approx 0.08

Per ounce cost of larger container =\dfrac{6.42}{128}

                                                         =0.05015625

                                                         \approx 0.05

Since, 0.08 > 0.05 therefore, the per ounce cost of larger container is less.

5 0
3 years ago
The Length of a flower garden is 2m less than twice it's width. The area of the garden is 60m². Calculate it's length​
PtichkaEL [24]

Answer:

you divide 60 by 2 and get 30 and then put the 2nd power on the 30

Step-by-step explanation:

5 0
3 years ago
A helicopter was -28.4 feet below sea level in a canyon and ascended 35.2 feet. What is the location of the helicopter after it
Brilliant_brown [7]

Answer:

6.8 ft

Step-by-step explanation:

A helicopter was -28.4 feet below sea level in a canyon and ascended 35.2 feet.

Ascending means add

-28.4 + 35.2

6.8 ft

5 0
4 years ago
Read 2 more answers
Need Help ASAP!!
gulaghasi [49]
The correct answer is B.1
7 0
4 years ago
Read 2 more answers
Esh deposits $3500 in an account that
xenn [34]

Answer:

Compound interest

Step-by-step explanation:

The question requires us to determine if the interest earned is a simple or compound interest

Simple interest = amount deposited x time x interest rate

Future value with compounding = A( 1 + r)^n

A = amount deposited

r = interest rate

n = time

We would calculate the simple interest and the future value in year 2

Simple interest in year 2 = $3500 x 0.0375 x 2 = 262.50

Future value in 2 years with a simple interest = 262.50 + 3500 = $3762.50

Future value in year 2 with compounding = 3500 x (1.0375)^2 = $3767.42

The value provided in year 2 with compounding matches that provided in the question. Thus, it is compounding of interest that is done

7 0
3 years ago
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