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Advocard [28]
2 years ago
11

How do I solve this?

Mathematics
1 answer:
Alona [7]2 years ago
8 0

Answer:

3^{7}

Step-by-step explanation:

Multiplying exponents is the same as adding them.

^2 x ^5 is the same as 2 + 5 = 7

You have to keep the bases the same so your answer is 3^{7}

Vote Brainliest, Thx :)

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4 0
3 years ago
A psychologist wants to know if the difficulty of a task influences our estimate of how long we spend working at it. She designs
Delicious77 [7]

Solution :

It is given that a psychologist wants to determine the difficulty of the task influences on the estimate of how long people spend working on it.

Now we have to describe a experiment by using a completely randomized design and learn the effect of the difficulty on the estimated time is by randomly assigning 15 students to a Group 1 of easy mazes and other 15 students to the second group 2 of hard mazes. And then we compare the time estimates of the two groups.

7 0
2 years ago
It is impossible to get 5 aces when selecting cards from a shuffled deck. Express the indicated degree of likelihood as a probab
lianna [129]

Answer: P(5A) = 0

Step-by-step explanation:

There are four aces in total in a 52 card deck. Therefore the probability of getting 5 aces can be expressed as;

P(5A) = 4/52 × 3/51 × 2/50 × 1/49 × 0/48 = 0

Therefore, it is impossible to get 5 aces from a standard 52 cards deck

8 0
3 years ago
The fish population in a local stream is decreasing at a rate of 2.5% per year. The original population was 45,000. Write an exp
Julli [10]

Answer:

y=45000(1-0.03)^x

Step-by-step explanation:

1) the exponential decay formula is

y=c(1-r)^x

where c= starting amount

r=rate of change

x=time

so

y=45000(1-0.03)^x

y=45000-1350x

4 0
3 years ago
Felicia is solving the expression -5(3x+2)+10x. Gregory is solving the expression -12-4x+?+?x. Both students simplified their an
densk [106]

Answer:

see the explanation

Step-by-step explanation:

we have

<em>Felicia</em>

-5(3x+2)+10x

Apply distributive property

-5(3x)-5(2)+10x

-15x-10+10x

Combine like terms

-5x-10

Let

a ----> the missing term with coefficient x in Gregory's expression

b ----> the missing constant  term in Gregory's expression

so

-12-4x+ax+b

equate Gregory's expression to Felicia's expression

-12-4x+ax+b=-5x-10

so

-12+b=-10 ----->b=2

-4x+ax=-5x ------> a=-1

so

Gregory's expression is

-12-4x+2-x

therefore

The missing terms are 2 and -x

7 0
2 years ago
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