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Helen [10]
3 years ago
8

Free points and brainliest :D. And yes.

Mathematics
2 answers:
saveliy_v [14]3 years ago
8 0

Answer:

yes please

Step-by-step explanation:

Sloan [31]3 years ago
3 0

Answer:hm?

Step-by-step explanation:

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A 90% confidence interval for a proportion is found to be (0.62, 0.68). What is the sample proportion?
Ludmilka [50]

Answer:

B. 0.65

Step-by-step explanation:

Sample proportion is the point estimate of the population proportion which is at the centre of the interval

(0.62+0.68)/2

1.30/2

0.65

3 0
3 years ago
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Find the equation of the cosine graphed.
Lunna [17]

Answer:

C) y = -cos(x) +2

Step-by-step explanation:

The centerline is 2, so 2 is added. That leaves out choices A and B.

There is a minimum (not a maximum) at x=0, so the multiplier is negative, eliminating choice D.

The correct equation is that of C: y = -cos(x) +2.

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3 years ago
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Nezavi [6.7K]
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2 years ago
5 ( x + 10 ) = 30 solve for x
Vlada [557]

Answer:

x = -4

Step-by-step explanation:

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5 0
3 years ago
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Pedro said, "On summer vacation, I spent 3 1/2 weeks with my uncle and two weeks more with my friend than with my uncle." How ma
ladessa [460]

Answer:

Pedro spent 9 weeks with his uncle and his friend.

Step-by-step explanation:

First, you need to find the amount of weeks Pedro spent with his friend. The statement indicates that he spent two weeks more with his friend than with his uncle which means that you have to add the number of weeks he spent with his uncle plus 2, which you can show in a number line:

       3\frac{1}{2}                   2

___________________

1       2       3       4       5       6       7       8       9       10        

3\frac{1}{2}+2=5\frac{1}{2}

Now, you can find the and answer by adding up the number of weeks he spent with his uncle plus the weeks he spent with his friend:

       3\frac{1}{2}                                   5\frac{1}{2}

__________________________________

1       2       3       4       5       6       7       8       9       10  

3\frac{1}{2} + 5\frac{1}{2}=9

According to this, the answer is that Pedro spent 9 weeks with his uncle and his friend.

6 0
3 years ago
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