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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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HELPLSPLSPLPSLPSLPSL
babunello [35]

Answer:

25.5

Step-by-step explanation:

first find the area od the rectangle than the triangle.

to find the area count the number of squares and use A=b*h

than do the same for the triangle using A=.5*b*h

15=3*5

10.5=.5*3*7

10.5+15=25.5

3 0
2 years ago
What is 12/24, 3/30, 10/8, 34/20, and 14/8 in lowest term and in percent form
kirza4 [7]
To find a fraction's lowest term, just simplify them and divide to find the decimal form.
12/24 = 1/2, 0.5
3/30 = 1/10, 0.1
10/8 = 5/4, 1.25
34/20 = 17/10, 1.7
14/8 = 7/4, 1.75

Finished!
3 0
3 years ago
Which of the following is a solution of y - x < -3?
Mariulka [41]

Answer:

Option A. (6,2)

Step-by-step explanation:

We have the following inequality:

y- x

Solving for y we have:

y

The line that limits the region of inequality is

y = x-3

Then the region of inequality are all values of y that are less than f (x) = x-3

In other words, the points belonging to the inequality are all those that lie below the line.

To find out which point belongs to this region substitute inequality and observe if it is satisfied

A. (6,2)

2

2   <em> is satisfied</em>

B. (2, 6)

6

6   <em>it is not satisfied</em>

C. (2, -1)

-1

-1 it is not satisfied

<em>The answer is the option A</em>

4 0
3 years ago
Where to put parentheses on 15/3+2•11
Ann [662]

Answer:

You should put the parentheses on the 12/3+2(11)

Hope this helps! :)

4 0
3 years ago
If a polygon has six sides, then it is called a hexagon.
Ivanshal [37]
A.
The contrapositive is formed by switching the hypothesis and conclusion of the statement and negating both of them.
5 0
3 years ago
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