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kodGreya [7K]
3 years ago
15

Use the intercepts to graph the equation. 7X-3Y=21

Mathematics
1 answer:
kobusy [5.1K]3 years ago
6 0
I don't know how to attach a screenshot so I can't show you.  So so sorry!
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F(r-2)=6(r-2)+7=6r-12+7
Gre4nikov [31]

Answer: D=22

Step-by-step explanation:

this is because if multiply f by r you get D and then you do all the other rmathematics and you wind up with 22

3 0
3 years ago
Your firm has a contract to make staff uniforms for a fast-food retailer. The heights of the staff are normally distributed with
FromTheMoon [43]

Answer:

a) 16%

b) 2.5%

Step-by-step explanation:

a)

The mean is 70 with standard deviation(SD) of 3 and you are asked to find out the percentage of staff that have <67(70-3 inch= mean - 1 SD) inch size, which means 1 SD below the mean (<-1 SD). Using 68-95-99.7 rule, you can know that 68% of the population is inside 1 SD range from the mean ( -1 SD to + 1 SD).

To put it on another perspective, there are 32% of the population that have < -1 SD and > +1 SD value. Assuming the distribution is symmetrical, then the value of < - 1 SD alone is 32%/2= 16%

b)

The question asks how many populations have size >76 inches, or mean + 2 SD (70+3*2 inch).

You can also solve this using 68-95-99.7 rule, but you take 95% value as the question asking for 2 SD instead.  Since 95% of population is inside 2 SD range from the mean ( -2 SD to + 2 SD), so there are 5% of population that have < -2 SD and > +2 SD value. Assuming the distribution is symmetrical, then the value of > +2 SD alone is 5%/2= 2.5%

3 0
3 years ago
Please help me!!!!!!
Aleks04 [339]

Answer:

first put the numbers on the lines then plot the points that are given

Step-by-step explanation:

first with the numbers of the line then plot the points that are given and you will find the slope and y-intercept of the equation

8 0
3 years ago
Ignore the highlighted ones please thxs
denis23 [38]
I believe it’s D. 2/3
5 0
3 years ago
Read 2 more answers
What is the best estimate of the area of the figure if each square has a side length of 1 mm?
Tanya [424]

29 square inches

Step-by-step explanation:

5 x 5 = 25

Triangles = 0.5

25 + 2 = 27

27 + (4 x 0.5)

27 + 2 =29

6 0
3 years ago
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