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Serggg [28]
3 years ago
14

Which expression is equivlent to (3^2)^-2?A) -81B) -12C) 1/81D) 1/12​

Mathematics
2 answers:
Colt1911 [192]3 years ago
6 0

Answer:

Answer: 1/81

First you simplify it to 3^-4

Then express it with a positive exponent

which goes to 1/3^4

Then evaluate it to 1/81

Andreyy893 years ago
4 0

Answer:

C) 1/81

Step-by-step explanation:

According to PEMDAS, you need to work on Parentheses first, so you should square 3.

3×3 = 9

A rule of exponents is that you can't have negative exponents, and if they show up you need to flip the side the exponent is at. (If it were at the denominator it would then have to be at the numerator)

Since the negative exponent was at (what is understood as) the numerator, you have to place it at the denominator.

Your equation should now be

1/ 9^2

Square 9

And the answer should be

1/81

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Answer:

30

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3 years ago
12 whites 4 blacks 3 blue 1 red. Find each experimental probability as a fraction? <br> 1.)p(white)
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3 years ago
Add the two expressions.<br><br> 2x + 6 and 6x −1<br><br> Enter your answer in the box.
MA_775_DIABLO [31]

Answer:

8x +5

Step-by-step explanation:

The sum is found by combining "like" terms—those that have the same arrangement of variables.

The first expression, 2x +6, has terms 2x and 6.

The second expression, 6x -1, has terms 6x and -1.

In each case, the first term listed is first-degree in the variable x. These are "like" terms, so can be added:

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... 8x + 5

4 0
3 years ago
If 2^x=1/32, find the value of x
Dovator [93]

Answer:

In this equation x is equal to -5.

Step-by-step explanation:

In order to find this, we first have to note for the base (2) to be larger than the answer (1/32), the exponent would have to be negative. We also can note that 2^5 is equal to 32, which allows us to know that the negated version would give us 1/32.

2^-5 = 1/32

3 0
3 years ago
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Answer: D) Reflection across the y-axis; 270^{\circ} counterclockwise rotation about the origin

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