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3 years ago

6

Is15 a composite or a prime number

2 answers:

Orlov [11]3 years ago

8 0

It is a prime number.

Over [174]3 years ago

5 0

Composite because its negative

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Pllllllzzzzzzzzz help me

Fed [463]

Answer:

for the first one he will get $51

the second one is £2.70

Step-by-step explanation:

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3 years ago

Due today. Pls help.

alexandr1967 [171]

X is 19
Explanation: because the opposite side of the angle is 134 degrees the other side also has to be 134 degrees. So we do 134-20 which is 114 and then 114 divided by 6 because the number next to x is 6 and the number that is x has to be 19 as 19x6 is 114.
I think this is the right answer and I hope it helps :)

5 0

3 years ago

Read 2 more answers

Needs help with algebra

Maslowich

Answer:

$4 {a}^{2} + 5b = 9b - 7c$

$=> 4 {a}^{2} + 7c = 9b - 5b$

$=> \frac{4 {a}^{2} + 7c }{4} = b$

option C

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2 years ago

What is 94.821 rounded to the nearest hundred A. 94.8 B. 94.82 C. 94.83 D. 95

Fittoniya [83]

Your answer would be B 94.82

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3 years ago

Read 2 more answers

Suppose you are testing the null hypothesis that a population mean is less than or equal to 46, against the alternative hypothes

PolarNik [594]

Answer:

Option A) 2.5

Step-by-step explanation:

We are given the following in the question:

Population mean, μ = 46

Sample mean, $\bar{x}$ = 50

Sample size, n = 25

Alpha, α = 0.05

Population standard deviation, σ = 8

First, we design the null and the alternate hypothesis

$H_{0}: \mu \leq 46\\H_A: \mu > 46$

Formula:

$z_{stat} = \displaystyle\frac{\bar{x} - \mu}{\frac{\sigma}{\sqrt{n}} }$

Putting all the values, we have

$z_{stat} = \displaystyle\frac{50 - 46}{\frac{8}{\sqrt{25}} } =2.5$

Option A) 2.5

6 0

3 years ago