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olasank [31]
3 years ago
5

Help pleaseeeeeeeeeeeeeeeeeeee

Mathematics
1 answer:
blondinia [14]3 years ago
5 0
I think it’s (-1,-6) for the first one. And the second one might be (3,-3). I’m so sorry if these are wrong. I haven’t done this in a few years
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A mountain climber ascends a mountain to its peak. The peak is 14,020 ft above sea level. The climber then descends 260 ft to me
Ivahew [28]
The answer to that is 25 so the answer is b
4 0
3 years ago
Determine the mean, median, mode, and range for the data set:
s2008m [1.1K]

Answer:

Step-by-step explanation:

Mean (Average): 8

Median (Middle): 8

Mode (Most Common): 8

Range (Biggest - Smallest): 7

6 0
3 years ago
I'm a survey of 200 employees, 65% agreed that the management of the cafeteria should be changed. If the confidence interval is
suter [353]

Answer:

Step-by-step explanation:

Confidence interval for population proportion is expressed as

Sample proportion ± margin of error

Margin of error = z × √pq/n

Where

z represents the z score corresponding to the confidence level

p = sample proportion. It also means probability of success

q = probability of failure

q = 1 - p

From the information given,

Sample proportion, p = 65/100 = 0.65

q = 1 - 0.65 = 0.35

n = 200

To determine the z score, we subtract the confidence level from 100% to get α

α = 1 - 0.95 = 0.05

α/2 = 0.05/2 = 0.025

This is the area in each tail. Since we want the area in the middle, it becomes

1 - 0.025 = 0.975

The z score corresponding to the area on the z table is 1.96. Thus, the z score for a confidence level of 95% is 1.96

Margin of error = 1.96√(0.65)(0.35)/200

Margin of error = 0.066 = 6.6%

The maximum boundary of the interval is

0.65 + 0.066 = 0.716

5 0
3 years ago
Karyn cuts a length of ribbon into 4 equal pieces, each 1 1/4 feet long. How long was the ribbon?
Ainat [17]
1 1/4 * 4 
= 5/4 * 4
= 20/4
= 5 

Ribbon was 5 feet long. 
3 0
3 years ago
Read 2 more answers
Mei draws three pairs of parallel lines that are each intersected by a third line. In each figure, she measures a pair of angles
blsea [12.9K]
Consider the picture, and check the choices:

A. The alternate interior angles, are also called Z angles, because of the Z shape they create.

examples of Z angles, are the green angles and purple angles shown in the picture.

They really look identical (congruent)

B. 

No: check the green angles in figure 1, and purple angles if figure 2. they are not acute.

C.

No. In each case, we have the same number of acute angles and obtuse angles, 

except case3, where the intersecting line, is perpendicular to the parallel lines.

D.
No, by the same reasoning used in part C. Only when the intersecting line cuts the 2 parallel lines perpendicularly, all the angles are congruent.


Answer: A

 

4 0
3 years ago
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