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TiliK225 [7]
3 years ago
15

Ronald bought a number of cds for 13$ each. What was the total amount he spent on CDs

Mathematics
1 answer:
iren2701 [21]3 years ago
6 0
How many cds did he buy?
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3² • 9³ = [ ]<br>solve ​
RideAnS [48]

Answer:

3⁸ or 6561

Step-by-step explanation:

First, let's look at PEMDAS - Parentheses, Exponents, Multiplication/Division, Addition/Subtraction.

There are no parentheses, so let's solve the exponents.

3² • 9³

3² = 9

9³ = 729

Your expression is:

9 • 729

Now let's multiply.

= 6561

This number can also be expressed with exponents.

Since 9 = 3², 9³ = 3²⁽³⁾

Now your expression is:

3² • 3²⁽³⁾

First, solve the exponents by multiplying.

3² • 3⁶

When you multiply two expressions with exponents that have the same base (3), you add the exponents.

3² • 3⁶ = 3⁽²⁺⁶⁾ = 3⁸

3⁸ also equals  6561.

Your answer is 3⁸ or 6561.

Hope this helps!

4 0
2 years ago
I need help finding the domain and range, I already know is not a function​
FromTheMoon [43]

Answer:

Domain: [-4, 4]

Range: [-3, 5]

Function? No

Step-by-step explanation:

Domain is all x-values that can be inputted in the graph that returns an output.

Range is all y-values that are outputted when <em>x</em> is inputted.

A function has to pass the Vertical Line Test.

6 0
3 years ago
Maria has 2 more than 4
Ksju [112]

Answer:

2022

Step-by-step explanation:

2 + 4x = y

y = 2 + 4(505)

y = 2 + 2020

y = 2022

4 0
2 years ago
How can knowing the greatest common factor and least common multiple help when adding subtracting and multiplying fractions
morpeh [17]
It helps you know what to multiply and the product when you subtracting and adding fractions.
3 0
3 years ago
Please help me do #59
Svetach [21]

Answer:

So the perimeter is 2(16+x) or 32+2x. The area is 8(x+8) or 8x+64.

Step-by-step explanation:


8 0
3 years ago
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