<img src="https://tex.z-dn.net/?f=%5Csqrt%7B-63%5C%5C" id="TexFormula1" title="\sqrt{-63\\" alt="\sqrt{-63\\" align="absmiddle"

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Stolb23 [73]

2 years ago

class="latex-formula">

Mathematics

1 answer:

alex41 [277]2 years ago

4 0

Here you go! Hope this helps

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PLEASE HELP ME!!!!!!!!!!!!!!!

Pachacha [2.7K]

Answer:

15 degrees

Step-by-step explanation:

angle a= (180-90)/2=90/2=45 degrees

angle QRP = 60

Angle b = 60-45=15 degrees

8 0

3 years ago

A statistics practitioner in a large university is investigating the factors that affect salary of professors. He wondered if ev

uysha [10]

Complete Question

The complete question is shown on the first uploaded image

Answer:

The null hypothesis is $H_o : \beta_1 = 0$

The alternative hypothesis is $H_1 : \beta_1 \ne 1$

Step-by-step explanation:

From the question we are told that

The number observations is $n = 100$

The annual salary (in dollars) is y

The mean score on teaching evaluation is x

The the relationship between the y and x is

$y = \beta_0 + \beta _1 x + \epsilon$

Where $\beta _1$ is the mean of the equation so

The null hypothesis is $H_o : \beta_1 = 0$

The alternative hypothesis is $H_1 : \beta_1 \ne 1$

6 0

2 years ago

I need help please?!!!!!!!!

Sunny_sXe [5.5K]

Step-by-step explanation:

add the like terms 5m + 6n + 8m + 2 = 13m + 6n +2

6 0

3 years ago

Read 2 more answers

<img src="https://tex.z-dn.net/?f=%20-%20%284x%20-%2015%29%20%5Cgeqslant%20-%209%283%20%2B%20x%29" id="TexFormula1" title=" - (4

Kay [80]

$- (4x - 15) \geqslant - 9(3 + x) \\ - 4x + 15 \geqslant - 27 - 9x \\ - 4x + 9x \geqslant - 27 - 15 \\ 5x \geqslant - 42 \\ x \geqslant - 8 \dfrac{2}{5}$

$21 + x > 2( - 2 - 5x) + 6x \\ 21 + x > - 4 - 10x + 6x \\ x + 10x - 6x > - 4 - 21 \\ 5x > - 25 \\ x > - 5$

Hope this helps. - M

5 0

2 years ago

What Is the Answer To number 1 ?

DochEvi [55]

Answer: 4 apples for $3.64

Step-by-step explanation:

The best buy is going to be the one that costs the least. To figure this out, you divide the number of apples by the price. (do not round)

4/3.64=1.09

9/8.01=1.23

14/12.43=1.12

24/21.12=1.13

As you can see, the 4 apples for $3.64 is the better choice since the number is the least.

5 0

3 years ago