Can somebody help me? here are the two questions, thanks in advance!

Mathematics

1 answer:

Elden [556K]3 years ago

6 0

Take one step at a time. First, let's evaluate g(1):

g(1) = 2*1-3 = -1

now plug this into f:

f(-1) = 5*-1 = -5. So the second answer is the right one.
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Same approach for q 12, only now we have no value to fill in for x. What's confusing here is that the x's of f and g should not be mixed up. For the sake of clarity let's rewrite f as

f(z) = 5z + 9.

Now we'll write 3-4x everywhere we find a z. Ah, only one place.

f(g(x)) = 5(3-4x) + 9 = 15 - 20x + 9 = 24 - 20x

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A. A car is marked down by 20%. It normally sells for $20,000. What is the sale

Novay_Z [31]

Answer:

A=16000 B=16400

Step-by-step explanation:

1. You multiply 20,000 by .2 or 20%, because you are trying to find a part of the 20,000.

2. You get 4,000 dollars, that is 20% of 20,000. To find the sale price, you take the 20% away from 20,000, which would be 16,000 dollars. That would be your answer for the first part.

3. the sales tax is 2.5% of the sale price. Again, you multiply 16,000 dollars, your sales price, by .025 or 2.5%.

4. you would get 400 dollars. You add the 2.5% or 400 dollars because you have to pay the tax as well as the price. You would get 16,400 dollars.

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3 years ago

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inysia [295]

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3 years ago

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ANTONII [103]

I’m not sure if this is what your looking for but x = -49