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viktelen [127]
3 years ago
6

7. Use the given information to construct a 99% confidence interval estimate of the mean of the

Mathematics
1 answer:
azamat3 years ago
5 0

i need the height of the population and the race could help to

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2+4z-18 slove step by step
Marianna [84]
2+4z-18 
change it so it's an equation
2+4z-18=0
then get 4z alone on one side by subtracting 4z from both sides
2-18=-4z
-16= -4z
divide both sides by -4

a negative divided by a negative becomes positive
4 =z
plug it in
2+4(4)-18
4x4 is 16
2+16-18=0
0=0

the same can be done for the second one 2+k-8

make it 2+k-8=0

move the k to get it alone so subtract k from both sides

2-8=-1k

-6 = -1K

you can divide by K to make K=6 

plug in 2+6-8=0

0=0
6 0
3 years ago
X=? The 2 line segments are congruent find the value of X
forsale [732]

Answer: X = 4

Step-by-step explanation:

the whole line is 18 long

10 + 12 = 22

22 - 18 = 4

10 - 4 = 6

12 - 4 = 8

8 + 6 = 14

14 + 4 = 18

7 0
3 years ago
When the polynomial P(x) = 3x3 − 2x2 + kx − 12 is divided by x − 3, the remainder is 0. Which of the following is also a factor
Andru [333]

27 - 12 + 3k - 12 = 0 \\ 3k + 3 = 0 \\ k =  - 1
another factor
3 {x}^{2}  + 7x + 20 +  \frac{48}{x - 3}
4 0
4 years ago
Miguel needs to make a total of 35 deliveries this week. So far he has completed 14 of them. What percentage of his total delive
Firlakuza [10]

Answer:

40%

Step-by-step explanation:

Miguel needs to make 35 deliveries this week

He has completed 14 of them so far .

Therefore, percentage of total deliveries completed

Will be number of completed deliveries divided by total number of deliveries multiplied by 100%

That’s

14/35 x 100%

0.4 x 100%

40%

This therefore means that Miguel has completed 40% of his total deliveries for the week

4 0
3 years ago
One angle of a pair of complementary angles is 45. What is the measurement of the other angle?
AlekseyPX
Complementary angles are two angles that add up to 90 degrees. 

If one angle is 45 degrees, we subtract it from the 90. 90 - 45 = 45. The measure of your second angle is 45 degrees. 
5 0
3 years ago
Read 2 more answers
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