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3 years ago

Can someone please explain?

Mathematics

1 answer:

NeTakaya3 years ago

5 0

Answer:

Step-by-step explanation:

x^(logx(y)) = y, so...

8^(log8(x)) = x

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Is 3(x+x+y) equivalent to 3x+3(x+y)

mote1985 [20]

Answer:

yes

Step-by-step explanation:

8 0

4 years ago

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Present value sura wiggle would like to make a single investment have 2.2 million at the time of her retirement in 28 years she

levacccp [35]

Answer:

if the annual interest rate is 7%, then you need to invest:

present value = future value / (1 + i)ⁿ

future value = $2,200,000
i = 7%
n = 28 years

present value = $2,200,000 / (1 + 7%)²⁸ = $330,884.87

if the interest rate is 15%, the you need to deposit a smaller amount:

present value = future value / (1 + i)ⁿ

future value = $2,200,000
i = 15%
n = 28 years

present value = $2,200,000 / (1 + 15%)²⁸ = $43,942.34

3 0

3 years ago

Find the slope of this line

aivan3 [116]

The slope (rise/run) aka 2 but since the line goes down its -2

3 0

3 years ago

a square painting has an area of 81x^2-90x-25. A second square painting has an area of 25x^2+30x+9. What is an expression that r

galina1969 [7]

Answer:

The answer in the procedure

Step-by-step explanation:

Let

A1 ------> the area of the first square painting

A2 ----> the area of the second square painting

D -----> the difference of the areas

we have

$A1=81x^{2}-90x-25$

$A2=25x^{2}+30x+9$

case 1) The area of the second square painting is greater than the area of the first square painting

The difference of the area of the paintings is equal to subtract the area of the first square painting from the area of the second square painting

D=A2-A1

$D=(25x^{2}+30x+9)-(81x^{2}-90x-25)$

$D=(-56x^{2}+120x+34)$

case 2) The area of the first square painting is greater than the area of the second square painting

The difference of the area of the paintings is equal to subtract the area of the second square painting from the area of the first square painting

D=A1-A2

$D=(81x^{2}-90x-25)-(25x^{2}+30x+9)$

$D=(56x^{2}-120x-34)$

4 0

4 years ago

After 20 mins Juan had completed 12 questions which is .7 of his assignments. What percent of the assignment had Juan not comple

Naddika [18.5K]

All you gotta do is multiply .7 by 100 which gives you 70
so subtract 70 from 100 which is 30
he had not completed 30% of his assignment

hope this helped :)

7 0

3 years ago

Read 2 more answers