Answers for 1,2,3 please. Thank you

Mathematics

1 answer:

lesantik [10]3 years ago

7 0

1. B.) $6^{4}$

2. C.) 3 x 3 x 3 x 3 x 3

3.
a.) $-5^{3}$

b.) $1.05^{6}$ 

c.) $(-\frac{3}{5} )^{3}$

Here's a little explanation as to how we got those answers. A power is an exponent given to a number indicating that the base number is being multiplied by itself that many times. Here's an example:

 $4^{3}$
The 4 is our base number and it is given the exponent 3, so we would read this expression like so, " Four to the third power". That third power means that 4 is being multiplied by itself 3 times. so, it would look something like this:

4 x 4 x 4
16 x 4
64

 $4^{3} = 64$

Thank you for the question! I hope this helped! Have an amazing day! :D

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A survey conducted five years ago by the health center at a university showed that 18% of the students smoked at the time. This

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Answer:

Test statistics = 2.29

P-value = 0.01101

Step-by-step explanation:

We are given that a survey conducted five years ago by the health center at a university showed that 18% of the students smoked at the time. This year a new survey was conducted on a random sample of 200 students from this university, and it was found that 50 of them smoke.

Let Null Hypothesis, $H_0$ : p = 0.18 {means that the percentage of students who smoke has remained same at 18% over the last five years}