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3 years ago

15

If the average salary for a college instructor in 1925 was $2300 and that average salary increased each year by $180, in what ye

ar was the average salary for a college instructor $10,040?

2 answers:

WINSTONCH [101]3 years ago

5 0

1968.
that's a cool amount of dough to be gettin'.

Sedaia [141]3 years ago

3 0

1968 is the correct answer

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How can you find approximations of square roots?

Likurg_2 [28]

Answer:

you can do a trial and improvement

Step-by-step explanation:

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3 years ago

Michmoo Computer Company sells computers and computer parts by mail. The company assures its customers that products are mailed

Anastaziya [24]

Answer: (60.858, 69.142)

Step-by-step explanation:

The formula to find the confidence interval for mean :

$\overline{x}\pm z_c\dfrac{\sigma}{\sqrt{n}}$ , where $\overline{x}$ is the sample mean , $\sigma$ is the population standard deviation , n is the sample size and $z_c$ is the two-tailed test value for z.

Let x represents the time taken to mail products for all orders received at the office of this company.

As per given , we have

Confidence level : 95%

n= 62

sample mean : $\overline{x}=65$ hours

Population standard deviation : $\sigma=18$ hours

z-value for 93% confidence interval: $z_c=1.8119$ [using z-value table]

Now, 93% confidence the mean time taken to mail products for all orders received at the office of this company :-

$65\pm (1.8119)\dfrac{18}{\sqrt{62}}\\\\ 65\pm4.142\\\\=(65-4.142,\ 65+4.142)\\\\= (60.858,\ 69.142)$

Thus , 93% confidence the mean time taken to mail products for all orders received at the office of this company : (60.858, 69.142)

8 0

3 years ago

Please answer this correctly

ArbitrLikvidat [17]

Answer:

326

Step-by-step explanation:

l x w

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326

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3 years ago

2. Write a recursive formula for the sequence 5, 18, 31, 44, 57, ... Then find the next term.

ludmilkaskok [199]

Answer: a6=70

Step-by-step explanation:

we know that

In the Arithmetic Sequence the formula is:

an= a1 + d(n−1)

where

a1 is the first term

d is the common difference

n is the number of terms

in this problem

a1=5

a2=18

a3=31

a4=44

a5=57

so

d=a2-a1 or a3-a2 or a4-a3 or a5-a4

d=57-44----> 13

find a6

a6= a1 + d(n−1)

n=6

d=13

a1=5

a6=5+13*(6-1)----> a6=5+13*5----> a6=70

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2 years ago

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daser333 [38]

Answer:

Step-by-step explanation:

. should be a right angle triangle,

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3 years ago