3 years ago

Hi I hope you have a great day..... Can you please answer this question it would make me happy. :)

Mathematics

1 answer:

Blizzard [7]3 years ago

6 0

Answer:

The answer is 11/20.

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In performing a chi-square goodness-of-fit test for a normal distribution, a researcher wants to make sure that all of the expec

Sholpan [36]

Answer:

The degrees of freedom for the chi square statistic is 7-4=3

3 0

3 years ago

Please help please help

Romashka [77]

Step-by-step explanation:

$\frac{-x^{2}+9}{x+3} \\ \\ \frac{-(x^{2}-9)}{x+3} \\ \\ \frac{-(x-3)(x+3)}{x+3} \\ \\ -x(x-3)$

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2 years ago

2) Addisyn has a 12-sided die. If she rolls

ahrayia [7]

The answer to your question is about 9 times so ya that your answer about 27 times

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3 years ago

All of the following are equivalent, except<br> 3x<br> 2x^2<br> x(2 + 1)<br> 2x + x

Svet_ta [14]

Answer:

2x^2 is not equivalent

Step-by-step explanation:

3x = 3x

2x^2 = 2x^2

X(2+1) = 3x

2x + x = 3x

the odd one out is 2x^2

8 0

3 years ago

Someone PLEASEEEE HELPPPP

igomit [66]

Answer:

x = 18√3

Step-by-step explanation:

From the picture attached,

In a right triangle,

Measure of one angle = 30°

Measure of adjacent side of the angle = 9 units

We have to find the measure of Hypotenuse from the given properties.

By cosine rule,

cos(30°) = $\frac{\text{Adjacent side}}{\text{Hypotenuse}}$

$\frac{\sqrt{3}}{2} =\frac{9}{x}$

$x=18\sqrt{3}$

Therefore, measure of Hypotenuse is 18√3 units.

3 0

3 years ago