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AleksandrR [38]
3 years ago
10

Mrs. Steward needs to save (4.2 X 10^6) dollars for her children's college education. If she can save (1.4 X 10^2) each month, h

ow many months will it take her to save? How many years?
Mathematics
1 answer:
qwelly [4]3 years ago
3 0

Answer: 30,000 months or 2,500 years

She'd better start saving more haha.

Step-by-step explanation:

Goal=4.2x10^6\\Savings/month=1.4x10^2

\frac{4.2x10^6}{1.4x10^2} =(\frac{4.2}{1.4})x10^(^6^-^2^)=(3)x10^4=3x10^4 =30000 months=\frac{30000}{12}=2500years

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3 years ago
Process control is nothing more or less than monitoring quality as the work is being performed. Perhaps the most widely adopted
ella [17]

Answer:

a. Grand Mean = 2.799

b. Standard Deviation = 0.01387

c. Standard Error = 0.0016

d. The range with a Z score of 3 = (2.75739, 2.84061)

Step-by-step explanation:

a. Grand mean :

Given that

Sum of 80 values = 223.91

Total observation = 80

Grand mean = 223.91/80 = 2.799

b. With the excel command "STDEV[range of cells]", we get the standard deviation as = 0.01387

c. Standard error =  Standard deviation / root of n

= 0.01387/\sqrt{80}\\ = 0.0016

d. The range with a Z score of 3 :

lower limit = mean - (3 * SD) = 2.799 - (0.04161) = 2.75739

upper limit = mean + (3 * SD) = 2.799 + (0.04161) = 2.84061

8 0
3 years ago
What are the measures of anglss a, b, and c? Show your work and explain your answers.
alexgriva [62]

A is 40

B is 50

C is 115

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4 0
3 years ago
Which is the best way to answer a 10 question multiple choice test in which each question has 6 choices for answers
Firdavs [7]

Answer:

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A die has 6 sides for every answer and the only choice regarding the number 6 and you can roll (questions) times.

6 0
3 years ago
HELP ASAP!
mrs_skeptik [129]
Short Answer: 5/36
How many ways can you throw two 6 sided dice?
Since each dice has six sides, the total number of ways is 6*6 = 36 ways.

How many ways can an 8 be thrown? To make the differences easier to see use a green colored die and a red colored die.

Red      Green
2            6
6            2
5            3
3            5
4            4 That's five different ways of getting an 8.

The probability is 

5 / 36 <<<<< answer

7 0
3 years ago
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