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3 years ago

The power 9 squared is equivalent to 81. What is the value of 9 Superscript negative 2?

Mathematics

1 answer:

Alla [95]3 years ago

4 0

Answer:

1/81

Step-by-step explanation:

9^2 = 81

We know that a^ -b = 1/a^b

9^-2

1/9^2

1/81

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Answer: c
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3 years ago

Which of the following is equal to (3^-3)(3^7)? a. 3^4 b. 3^-4 c. 3^-10 d. 3^10

balu736 [363]

a. 3^4 which is equal to (3^-3)(3^7)

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3 years ago

The table below shows all of the possible outcomes for rolling two six-sided number cubes. A table with 36 possible outcomes. Th

barxatty [35]

The image is missing, we have attached the image.

Answer:

The of getting an even number in first and an odd number second is $\frac{1}{4}\ or\ 0.25$ .

Step-by-step explanation:

Given,

Total number of outcomes = 36

We have to find the probability of rolling an even number first and an odd number second.

Solution,

Firstly we will find out the possible outcomes;

$(2,1),\ (2,3),\ (2,5),\ (4,1),\ (4,3),\ (4,5),\ (6,1),\ (6,3),\ (6,5),$

So the total number of outcomes = 9

Now according to the formula of probability, which is;

$P(E)=\frac{\textrm{total number of possible outcomes}}{\textrm{total number of outcomes}}$

Now on putting the values, we get;

P(of getting an even number in first and an odd number second)= $\frac{9}{36}=\frac{1}{4}=0.25$

Hence The of getting an even number in first and an odd number second is $\frac{1}{4}\ or\ 0.25$ .

5 0

3 years ago

Read 2 more answers

Looooooooooooooooooooooooool

Aleksandr [31]

Answer:

D.5/36

Step-by-step explanation:

There are 5 ways;

1 and 5

2 and 4

3 and 3

4 and 2

5 and 1

4 0

2 years ago

The probability of a drawing a blue marble from a box of 18 marbles is 2/3. How many green marbles should be added to the box in

artcher [175]

Answer:

6 green marbles should be added.

Step-by-step explanation:

If the probability of drawing a blue marble from 18 marbles is 2/3 then there are 12 blue marbles because 18 times 2/3 is 12. This means that to reduce this probability to 1/2 you need to add 6 more marbles to the total amount to get it to 24. Now the probability of getting a blue marble is 12/24 which is 1/2.

8 0

2 years ago