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Natalija [7]
3 years ago
15

2 to the power of -3 simplified

Mathematics
2 answers:
Fantom [35]3 years ago
6 0

Answer:

9

Step-by-step explanation:

A negative x a negative makes a positive

blsea [12.9K]3 years ago
5 0

Answer:

= 1/8 or 0.125

Step-by-step explanation:

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Will give brainlist!!! Please help
damaskus [11]

Answer:

total is (12-4=5(^19 <6>) THIS IS MY ANWER

7 0
2 years ago
A ​$310 suit is marked down by 20​%. Find the sale price.
loris [4]

Answer:

the answer is 62!

Step-by-step explanation:

multiply

5 0
3 years ago
Read 2 more answers
What is the name for the threshold​ p-value that determines when the null hypothesis is​ rejected?.
Anna [14]

Alpha level. the minimum P-value at which we reject the null hypothesis

<h3>What is Null hypothesis ?</h3>

That two options are identical is the null hypothesis. According to the null hypothesis, the observed difference is solely the result of chance. The probability that the null hypothesis is correct can be determined via statistical testing.

<h3>What is alpha level?</h3>

The "significance level," often known as the alpha level, must be established before performing any statistical test. The likelihood of rejecting the null hypothesis when it is true is what is meant by the term "alpha level" in statistics. The likelihood of making a poor decision is what this phrase means.

To know more about Null hypothesis visit:

brainly.com/question/28098932

#SPJ4

7 0
2 years ago
The null and alternative hypotheses are given. Determine whether the hypothesis test is left-tailed, right-tailed, or two-tailed
OlgaM077 [116]

Answer:

Test is Left tailed test

Parameter tested is standard deviation

Step-by-step explanation:

We are given the hypothesis as;

Null hypothesis; H0: σ = 8.6

Alternative hypothesis; H1: σ < 8.6

Where;σ is a constant generally known in statistics as the standard deviation.

Now, it's the alternative hypothesis that will let us know whether this is left tailed, right tailed or two tailed.

Alternative hypothesis says σ < 8.6.

This means that the values of σ that satisfy this hypothesis are less than 8.6 and thus are on the left hand side of 8.6 on a number line. Thus, the shaded region in a normal distribution curve will be on the left.

Thus, it's a left tailed test

3 0
3 years ago
Here’s another one that I’m having trouble with
Alla [95]

The total is 94 units.

A square has four equal sides so...

(5x-1)+(4x+3)+(5x-1)+(4x+3)=94

Combine like terms

19x+4=94

Subtract 4 from both sides

94-4=90

18x=90

Divide by 18 on both sides

90/18=5

X=5

Plug 5 in for x on the length of PQ

4(5)+3

20+3=23

Length of PQ=23 units

6 0
3 years ago
Read 2 more answers
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