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STatiana [176]
3 years ago
13

In making plastics a colourless gas is used and some will leak into the air. The manufacturer has given instructions to halt pro

duction if the mean (average ) amount of this gas in the area exceeds 3.0 parts per million (ppm). Every day the safety manager plans to select a large sample n=50 air specimens and to perform a one tailed test Ha µ > 3 at significance level α = 0.01. Determine the lower limit of the rejection region of this test. Give your answer to 2 decimal places.
Mathematics
1 answer:
olga_2 [115]3 years ago
6 0
I dont know :/ ............
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$600 invested with compound interest at a rate of 4% per year for 10 years <br> formula:M= P(1+i)^n
makkiz [27]
Answer: M = 2100$

Explanation:

M = P(1 + I)^n

P = 600$, I = 4% = 0.04, n = 10

=> M = 600(1 + 0.04)^10
M = 600(1.04)^10
M = 600(3.5)
M = 2100$
8 0
2 years ago
Given: ΔXYZ AB is a midsegment parallel to XY. The slope of AB is 2 3 . What is the slope of XY?
stich3 [128]
The slope of XY is the same as the slope of AB because XY is parallel to AB. Parallel lines have the same slope. 
5 0
3 years ago
Read 2 more answers
1/4z-2/7=5/7 what is z
Alenkasestr [34]

Answer:

z=4

Step-by-step explanation:

1/4z-2/7=5/7

1/4z= 5/7+2/7

1/4z=1

z=4

3 0
3 years ago
-4(2x + 4) &gt; 8x + 64
romanna [79]

Hello there I hope you are having a great day :)

Your Question, -4(2x + 4) > 8x + 64 Solve for X

1) Expand -8x-16>8x+64

2) Add 16 to both sides -8x-16+16>8x+64+16

3) Simplify -8x>8x+80

4) Subtract 8x from both sides -8x-8x>8x+80-8x

5) Simplify -16x>80

6) Multiply both sides -1 (Reverse the inequality) (-16x) (-1) >80 (-1)

7) Simplify 16x<-80

8) divide both sides by 16   16x/16 <  -80/16

9) Simplify x < -5  

This should be your answer x < -5

Hopefully that helps you :)

5 0
2 years ago
Read 2 more answers
Help please? match each system of linear equation with the correct numbers of solutions ​
Ksenya-84 [330]

Answer:

Step-by-step explanation:

First system:  no solution, since the two lines are parallel; they never cross.

Second system:  one solution

Third system:  infinitely many solutions, since the second equation is a multiple of the first

4 0
3 years ago
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