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yarga [219]
3 years ago
15

Which expression is equivalent to r9•r3

Mathematics
1 answer:
evablogger [386]3 years ago
6 0

Answer:

An equivalent expression to this equation is r¹²

Step-by-step explanation:

When multiplying exponents, you add the exponential numbers together. So, you would add 9 and 3 together.

r⁹ × r³ = r¹²

So, an expression that is equivalent to the equation is <em>r¹²</em>

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What is the answer to this equation 13-3/2x=34
goldenfox [79]
If you would like to solve the equation 13 - 3 / 2 * x = 34, you can do this using the following steps:

13 - 3 / 2 * x = 34
13 - 34 = 3 / 2 * x
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x = - 21 * 2 / 3
x = - 14

The correct result would be - 14.
6 0
3 years ago
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There are 30boys in a sporting club 20of them play hockey and 15 play volley ball each boy plays atleast one of the true game.il
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5 boys play both hockey and volleyball (30-20-15=5)
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2 years ago
Six more than five times a number is at least twenty-one
kakasveta [241]
Lets say the number is x so we can make an equation
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6 0
3 years ago
The perimeter of a rectangle is 87 ft. The length is x ft and the width is 19 ft. What is the length of the rectangle, in feet?
marta [7]

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Step-by-step explanation:

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subtract 38 from both sides

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