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Inga [223]
3 years ago
6

210 at 8% for 7 years

Mathematics
1 answer:
Novay_Z [31]3 years ago
5 0

Answer:

44.040192

Step-by-step explanation:

I barely remember doing this in math. I did some research on the question and that's the answer that I got. If I'm not wrong, the formula you are supposed to use is:

y = a(r)^t

A being the regular number in the problem (210).

R is the rate/ ratio (8% which would be converted to 0.8).

T is the time (7 years).

Put the equation together, and you get y = 210(0.8)^7. When you plug it into a calculator, you get 44.040192.

Sorry for the long explanation, but I hope this helps you solve your problem!

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Please help please and thank you
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Step-by-step explanation:

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3 0
3 years ago
Find the f^-1(x) and it’s domain
borishaifa [10]

Answer:

f^{-1}(x) = (x + 8)^2

x \ge -8

Step-by-step explanation:

Given

f(x) = \sqrt x - 8

Solving (a): f^{-1}(x)

We have:

f(x) = \sqrt x - 8

Express f(x) as y

y = \sqrt x - 8

Swap x and y

x = \sqrt y - 8

Add 8 to both\ sides

x + 8 = \sqrt y - 8 + 8

x + 8 = \sqrt y

Square both sides

(x + 8)^2 = y

Rewrite as:

y = (x + 8)^2

Express y as: f^{-1}(x)

f^{-1}(x) = (x + 8)^2

To determine the domain, we have:

The original function is f(x) = \sqrt x - 8

The range of this is: f(x) \ge -8

The domain of the inverse function is the range of the original function.

<em>Hence, the domain is:</em>

x \ge -8

3 0
3 years ago
What is the opposite of 3√ ?<br><br><br> 13√<br><br> −3√<br><br> −32 <br><br> 3²
Ivan

Answer:

D or B

Step-by-step explanation:

7 0
3 years ago
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