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Rom4ik [11]
3 years ago
10

It is believed that as many as 25% of adults over 50 never graduated from high school.We wish to see if this percentage is the s

ame among the 25 to 30 age group.How many of this younger age group must we survey in order to estimate the proportion of non-grads to within 6% with 90% confidence.
Mathematics
1 answer:
leva [86]3 years ago
6 0

Answer:

n=141

Step-by-step explanation:

I hope it help.

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How many points need to be removed from this graph so it will be a function?​
finlep [7]

Answer:

3 points

Step-by-step explanation:

in a function, an x-value must have only one y-value correlated with it.

So, you would need to remove either (-3, 2) or (-3, 3)

And, you would need to remove either (2, -2) or (2, -4)

<em>And, </em>you would need to remove either (1, 4) or (1, -4)

So--you need to remove 3 points in total for this to be a function.

[a y-value can have multiple x-values. the two points at -4 are allowed, and do not need to be removed for both of them to be there]

8 0
1 year ago
Tan(42)= x over 16<br> I need the answer and how ya got it pleasee
xz_007 [3.2K]

Answer:

14.40646471 =x

Step-by-step explanation:

tan (42) = x/16

Multiply each side by 16

16 tan 42 = x/16 *16

16 tan 42 = x

16 * .900404044 = x

14.40646471 =x

7 0
3 years ago
A toy rocket was shot into the air. The graph below represents the height over the time of the rocket. Which of the following ar
Ludmilka [50]

Answer: Option 'B' and 'C' are correct.

Step-by-step explanation:

Since we have given that

A  rocket was fired into the air.

The rocket reached a maximum height of 59 feet at point (3.5,59) as shown in the figure.

And it took the rocket 3.5 seconds to reach its maximum height.

and the rocket landed after 6.9 seconds, So option 'D' is false which states  The rocket landed after 34 seconds.

The equation that represents the rocket’s height over time has two solutions is completely false as it has only one solutions.

Hence, Option 'B' and 'C' are correct.

8 0
2 years ago
Read 2 more answers
Can someone please help?
n200080 [17]

Answer:    9. Is yes 2 grams of protein; per 1 cup of serving    10. Is no, because 30 + 30 is 60 and not 32 + 28 because 32 + 28 isn't proportional, also i love bokuaka

Step-by-step explanation:

4 0
2 years ago
How do you turn a fraction into a percentage? <br> Eg:3/4
ch4aika [34]

Answer:

75%

Step-by-step explanation:

First, you need to transfer it into decimal, then multiply the decimal by 100 .

34=0.75.

Now multiply 0.75 by 100 to get the percentage.

0.75∗100=75.

7 0
3 years ago
Read 2 more answers
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