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k0ka [10]
3 years ago
14

Graph. *8th grade math* (QUIZ)

Mathematics
1 answer:
Troyanec [42]3 years ago
7 0

Answer:

Hope this helps

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A researcher is conducting a study of charitable donations by surveying a simple random sample of households in a certain city.
nirvana33 [79]

Answer:

H0: p ≤ 0.50

Ha: p > 0.50

Step-by-step explanation:

The null hypothesis (H0) tries to show that no significant variation exists between variables or that a single variable is no different than its mean. While an alternative Hypothesis (Ha) attempt to prove that a new theory is true rather than the old one. That a variable is significantly different from the mean.

For the case above;

Let p represent the proportion of households in the city that gave a charitable donation in the past year

The null hypothesis is that the proportion of households in the city that gave a charitable donation in the past year is not more that 0.50

H0: p ≤ 0.50

The alternative hypothesis is that the proportion of households in the city that gave a charitable donation in the past year is more that 0.50

Ha: p > 0.50

7 0
3 years ago
(b) A basketball player made 2 out of 4 free throws she attempted which is 50%. She wants to know how many consecutive free thro
Dvinal [7]

Answer:

B 75%

Step-by-step explanation:

6 0
3 years ago
One of the angles of a regular dodecagon is 150°. What is the sum of the measures of all the interior angles of this dodecagon?
Kamila [148]

Answer:

D

Step-by-step explanation:

i think so but it will help you

8 0
3 years ago
6. Let f(x)=x-2 and g(x) = x^2. Find the value of (fog)(-1).<br> A. -1<br> B.9<br> C.3<br> D.-3
inna [77]

Answer:

<h2>The answer is option A</h2>

Step-by-step explanation:

f(x) = x - 2

g(x) = x²

In order to find (fog)(-1) we must first find (fog)(x)

To find (fog)(x) substitute the g(x) into f(x) that's for every x in f (x) replace it with

g (x).

That's

(fog)(x) = x² - 2

To find (fog)(-1) substitute the value of x that's - 1 into (fog)(x)

We have

(fog)(-1) = (-1)² - 2 = 1 - 2 = - 1

Hope this helps you

8 0
2 years ago
Equivalent expression to −5.55−8.55c+4.35c
Y_Kistochka [10]
-5.55-8.55c+4.35c 2nd and 3rd term is like term we can connect. -digit have to larger number than +digit so the sign will be negative
-5.55-4.2c there is no like term to connect
Hence this is the answer
5 0
1 year ago
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