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uysha [10]
3 years ago
10

A personal identification number (PIN)

Mathematics
1 answer:
Alexxx [7]3 years ago
6 0
Jejebbebdnsbdhwbejjeejejejrjfjfjfjfjfjfjfjfjfjfjfjfjjffjufcucuucjfufjfudjuejeuejeuejeuejejj
You might be interested in
College alcohol and drug use: In a Washington Post/Kaiser Family Foundation poll conducted from January through March 2015, 56%
natima [27]

Answer:

D)We are 95% confident that the proportion of adults (ages 17‐26) who attended college during the past 4 years and say that alcohol and drug use at their school is a big problem is between 53% and 59%.

Step-by-step explanation:

x% confidence interval:

A confidence interval is built from a sample, has bounds a and b, and has a confidence level of x%. It means that we are x% confident that the population mean is between a and b.

In this question:

95% confidence interval is (0.53, 0.59).

This means that we are 95% sure that the true proportion for the population of adults who attended college who say that alcohol is a big problem is between 0.53 and 0.59. This means that the answer is given by option D.

8 0
2 years ago
How do you find the general solution for cos2A=cos^2A
eduard

Answer:

A =  0 +/- nπ radians ,  where n is an integer.

Step-by-step explanation:

cos 2A =  cos^2 A

Use the identity cos 2A = 2 cos^2 A -1  :

2cos^2 A - 1 = cos^2 A

cos^2 A = 1

Cos A = +/-1

When cos A = 1,  A = 0 +/- 2nπ radians.

when cos A = -1, A = π +/- nπ radians.

6 0
2 years ago
Solve this system by substitution. y = -6 y = -3x - 12 *Remember to write your answer as a coordinate point(x, y)​
kirza4 [7]
-6 = -3x -12
6 = -3x
x = -2

y = -3(-2) -12
y = 6 -12
y = -6
(-2,-6)
8 0
2 years ago
Help please this is due rn​
Rama09 [41]
Since these are alternate interior angles, they are equal. So, you would set them equal to each other (-5+13x=60). Then, add 5 to both sides to get 13x=65. Divide 65 by 13 to get the final answer, x=5
3 0
3 years ago
What is the distance between the points (7, −10) and (−8, −10)?
dezoksy [38]

Answer:

15

Step-by-step explanation:

gradient=(change in Y coordinate/change in X coordinate)

=y1-y2/X1-X2

6 0
2 years ago
Read 2 more answers
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