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neonofarm [45]
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?
Mathematics
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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Solve: q + 24 = 24 A. q = 8 B. q = 2 C. q = 3 D. q = 0
vekshin1

Answer:

Hi! The answer to your question is D. q = 0

Step-by-step explanation:

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3 years ago
Give an example of a function f : N → N that is surjective but not injective. You must explain why your example is surjective an
Helen [10]

Answer:

Consider f: N → N defined by f(0)=0 and f(n)=n-1 for all n>0.

Step-by-step explanation:

First we will prove that f is surjective. Let y∈N be any natural number. Define x as the number x=y+1. Then x∈N, and f(x)=x-1=(y+1)-1=y.  We conclude that f is surjective.

However, f is not injective. Take x1=0 and x2=1. Then x1≠x2 but f(x1)=0 and f(x2)=x2-1=1-1=0. We have shown that there are two natural numbers x1,x2 such that x1≠x2 but f(x1)=f(x2), that is, f is not injective.

Note:

If 0∉N in your definition of natural numbers, the same reasoning works with the function f: N → N defined by f(1)=1 and f(n)=n-1 for all n>1. The only difference is that you consider x1=1, x2=2 for the injectivity.

7 0
3 years ago
$30,000 is invested for 15 years with an APR of 4.5% and daily compounding.
Alex73 [517]

Answer:

202500

Step-by-step explanation:

15x0.45=6.75

30000x6.75=202500

6 0
2 years ago
How can I get this count <br>y = 0.75x + 0.25​
Andrews [41]

Answer:

what the question

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Step-by-step explanation:

6 0
3 years ago
MARKING BRAILIEST!!!! Select the statement that describes this expression: 13 + fraction 1 over 2 x (6 ÷ 2 + 6)
Sauron [17]

Answer: D

You get the same answer from doing both!

3 0
2 years ago
Read 2 more answers
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