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3 years ago

Can somebody plz help answer all these questions correctly thanks!! (Only if u know how) :D

Mathematics

2 answers:

Zepler [3.9K]3 years ago

8 0

Answer:

Hope this helps

Step-by-step explanation:

9. 18

10.36

11. 14

12. 6

13. 12

14. 22

15. 8

16. 3

MAVERICK [17]3 years ago

6 0

Answer:

9. 6 (3) = 18

10. 12 (3) = 36

11. 3 (3) + 5 = 14

12. 4 (3) -6 = 6

13. 15 - 3 = 12

14. 7+5(3)= 22

15. 24/3= 8

16 27/3 (3) = 3

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What are the zeros of the quadratic function f(x) 128² - 10x - 3?

Temka [501]

Answer:

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Step-by-step explanation:

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4 0

3 years ago

Read 2 more answers

When the effective interest rate is 9% per annum, what is the present value of a series of 50 annual payments that start at $100

ser-zykov [4K]

Answer:

$1,109.62

Step-by-step explanation:

Let's first compute the future value FV.

In order to see the rule of formation, let's see the value (in $) for the first few years

End of year 0

1,000

End of year 1(capital + interest + new deposit)

1,000*(1.09)+10

End of year 2 (capital + interest + new deposit)

(1,000*(1.09)+10)*1.09 +10 =

$\bf 1,000*(1.09)^2+10(1+1.09)$

End of year 3 (capital + interest + new deposit)

$\bf (1,000*(1.09)^2+10(1+1.09))(1.09)+10=\\1,000*(1.09)^3+10(1+1.09+1.09^2)$

and we can see that at the end of year 50, the future value is

$\bf FV=1,000*(1.09)^{50}+10(1+1.09+(1.09)^2+...+(1.09)^{49}$

The sum

$\bf 1+1.09+(1.09)^2+...+(1.09)^{49}$

is the sum of a geometric sequence with common ratio 1.09 and is equal to

$\bf \frac{(1.09)^{50}-1}{1.09-1}=815.08356$

and the future value is then

$\bf FV=1,000*(1.09)^{50}+10*815.08356=82,508.35564$

The present value PV is

$\bf PV=\frac{FV}{(1.09)^{50}}=\frac{82508.35564}{74.35572}=1,109.616829\approx \$1,109.62$

rounded to the nearest hundredth.

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GuDViN [60]

Answer:

Step-by-step explanation:

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3 years ago

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vampirchik [111]

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