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Oduvanchick [21]
2 years ago
15

Which graph represents the function f(x)=−2^x−1?

Mathematics
1 answer:
finlep [7]2 years ago
5 0

Answer:

The graph in the bottom right corner

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If you deposit $25,000 now at 6.5% compounded quarterly, how much will you have in 30 years?
Mice21 [21]

Answer:

$172,984.44

Step-by-step explanation:

We can use the formula

A = P(1 + \frac{r}{n})^{nt} to compute the final amount

Here P is the principal amount, the original deposit = $25,000

r is the annual interest rate = 6.5% = 0.065 in decimal

n is the number of times the compounding takes place. Here it is quarterly so it is 4 times a year

t is the number of time periods ie 30 years

A is the accrued amount ie principal + interest

Computing different components,

nt = 4 \times 30 = 120

r/n =  0.065/4 = .01625

1 + r/n = 1.01625

(1 + r/n)^{nt} = 1.01625^{120}

Therefore

A = 25000 \times 1.0625^{120} = 172,984.44


4 0
2 years ago
Okay I know I suck at math and I really don't understand math that well so can you help me on this??? Thank you!
Alja [10]
W - width
l - length
p - perimeter

The perimeter is 72 cm (p=72).
The length is twice the width (l=2w).
The formula for perimeter is 2w+2l=P.

p=72 \\
l=2w \\ \\
2w+2l=p \\
2w+2 \cdot 2w=72 \\
2w+4w=72 \\
6w=72 \\
w=12 \\ \\
l=2w=2 \cdot 12 =24

Check the answer:
2 \cdot 12 + 2 \cdot 24 \stackrel{?}{=} 72 \\
24+48 \stackrel{?}{=} 72 \\
72 \stackrel{?}{=} 72 \\ \hbox{true}

The length of the photo is 24 cm, the width of the photo is 12 cm.
8 0
3 years ago
What's number 19?? And how did u set it up?
Novay_Z [31]
12x=x^2-64
you have to do quadratic formula
6 0
3 years ago
Inverse of the function f(x) = 2x + 5?
andrew-mc [135]

Answer:

y^{-1} =\frac{1}{2} x-\frac{5}{2}

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
Multiplying by which number is equivalent to finding 15%?
Ahat [919]
.15 is your answer, seeing as .15 is equivalent to 15%
3 0
3 years ago
Read 2 more answers
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