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garri49 [273]
3 years ago
14

Simplify 3^5•3^4 a.) 3•20 b. 3^9 c.) 6^9 d.) 3^20

Mathematics
1 answer:
Dmitry_Shevchenko [17]3 years ago
4 0

Answer:

But if we are doing 3^x we need to add both of them

This is a rule you should remember if you have both same base to x power when you are multiplying

5+4 = 9

answer is 3^9 or 19683

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8. The distribution for the time it takes a student to complete the fall class registration has mean of 94 minutes and standard
Alborosie

Answer:

Mean = 94

Standard deviation = 1.12

The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.

Step-by-step explanation:

The Central Limit Theorem estabilishes that, for a random variable X, with mean \mu and standard deviation \sigma, the sample means with size n of at least 30 can be approximated to a normal distribution with mean \mu and standard deviation, which is also called standard error s = \frac{\sigma}{\sqrt{n}}

In this problem, we have that:

\mu = 94, \sigma = 10

By the Central Limit Theorem

The sampling distribution of the sample mean is going to be normally distributed, beause the size of the samples are 80, which is larger than 30.

Mean = 94

Standard deviation:

s = \frac{10}{\sqrt{80}} = 1.12

7 0
3 years ago
S^2+13s+12=0 solve for s
MArishka [77]

Answer:

The answer is s=-1 or s=-12

Step-by-step explanation:

First Step: Factor left side of equation.

(s+1)(s+12)=0

Second Step: Set factors equal to 0.

s+1=0 or s+12=0

So, the answer is either -1 or -12

4 0
3 years ago
Solve for y in:y^(-2/3)=9
Dmitrij [34]

Answer:

Fractional form, y = 1/27, y = -1/7

Decimal form, y = 0.037 bar, y = -0.037 bar

8 0
3 years ago
Read 2 more answers
What is the answer to? |x+6|>2
melomori [17]

Answer:

x>−4 or x<−8

Step-by-step explanation:

8 0
4 years ago
Got It? Do this problem to find out.
grigory [225]

Answer:

2/3

Step-by-step explanation:

rise over run

up and over

5 0
3 years ago
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