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exis [7]
3 years ago
6

Please need help on this!

Mathematics
1 answer:
GrogVix [38]3 years ago
8 0
F(x) = x(x -1)

f(3) = 3*2 = 6
f(6) = 6*5 = 30

so f(f(3)) = 30 . . . . . selection A
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Dave won a hot dog eating contest by eating 18 hot dogs in 10 minutes. He ate two more than twice the amount of the runner-up. W
IrinaVladis [17]

Answer:

The correct anser is option

B. 2x + 2 = 18

Step-by-step explanation:

Let the number of hot dogs eaten by the runner up be represented by x

If Dave ate 2 more than twice x, this means that the number eaten by him = 2x + 2

Since the total number of hot dogs eaten by Dave is 18

Therefore, the equation will be

2x + 2 = 18

So the number of hot dogs eaten by the runner-up is determined by solving for x

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2× = 16

x = 16/2

x = 8

The runner up are 8

While Dave are

2×8 + 2 = 18.

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3 years ago
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Step-by-step explanation:

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2 years ago
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I'd be really thankful if someone could help me out with this question. "0.006, 0.06, 0.6, 6. What are the next two numbers in t
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Step-by-step explanation:

We are told that the insurance payment for the car follows a certain pattern that can be represented through an expression. The payment is decreasing by $20 every year. As we don't know the total payment amount per period, so we cannot calculate how much is paid per period/year for insurance but we can calculate the rate at which this payment is decreasing.

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