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3 years ago

If x greater than -15, then x can be which following numbers?

Mathematics

1 answer:

kiruha [24]3 years ago

7 0

Answer:

-14 or 1 2 3

Step-by-step explanation:

because anything that is -14 or -13 and so on is greater than -15

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Assume the competing hypotheses take the following form: H0: µ1 – µ2 = 0, HA: µ1 – µ2 ≠ 0, where µ1 is the population mean for p

DedPeter [7]

Answer:

$t=\frac{\bar x_1- \bar x_2}{\sqrt{\frac{s_1^2}{n_1} +\frac{s_2^2}{n_2} } }$

Step-by-step explanation:

H0: µ1 – µ2 = 0

HA: µ1 – µ2 ≠ 0

We have given,

The population variances are not known and cannot be assumed equal.

The test statistic for the test is

$t=\frac{\bar x_1- \bar x_2}{\sqrt{\frac{s_1^2}{n_1} +\frac{s_2^2}{n_2} } }$

Where,

$\bar x_1$ = sample meaan of population 1

$\bar x_2$ = sample mean of population 2

$n_1$ = sample size of population 1

$n_2$ = sample size of population 2

Therefore, this is the test

$t=\frac{\bar x_1- \bar x_2}{\sqrt{\frac{s_1^2}{n_1} +\frac{s_2^2}{n_2} } }$

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3 years ago

Estimate the area of the circle. Round to the nearest whole number. A) 3 square units B) 6 square units C) 9 square units D) 12

ra1l [238]

Answer:

Please attach a pic :)

Brainliest would be appreciated

8 0

3 years ago

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How to solve 9x-5-(-6x)

koban [17]

Answer: 3x-5

Step-by-step explanation:

9x-5(-6x)

9x-5-6x

3x-5

6 0

3 years ago

Read 2 more answers

Helpppppp!!!!

allsm [11]

<h2><u>PLEASE MARK BRAINLIEST!</u></h2>

Answer:

Let's solve!

Step-by-step explanation:

2x + 6x - 9 = 0

\____/

8x - 9 = 0

+ 9 + 9

8 8

x = 9/8 --or-- $1\frac{1}{8}$

x = 1.125

I hope this helps!

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3 years ago

Which of these is an example of a literal equation?

Marina86 [1]

Answer: ax - by=k

Step-by-step explanation:

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3 years ago