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pychu [463]
3 years ago
8

Using F(x) = 5x^2- 3, what is f(-3)? A. 42 B. -3 C.-48 D. -42

Mathematics
1 answer:
Gnom [1K]3 years ago
8 0

Answer: 42

Step-by-step explanation

Switch x out with 3

using Pemdas do the exponent first

3^2 is 9

then multiply

5*9= 45

then subtract

45-3=42

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hodyreva [135]

Answer:

2

Step-by-step explanation:

A coefficient is a number of times a variable. So in this equation. 2 is being multiplied by y. so 2 is the coefficient.

3 0
3 years ago
A carriage on a carnival ride can hold up to 4 people. How many carriages are needed for a group of 22 people to ride?
zheka24 [161]

Answer:

Hello!

Let's simply divide our two numbers to find how many carriages we need.

22/4=5.5

The thing is, we cannot have 5.5 carriages. We can just have an extra carriage with only 2 people. This gives us 6 carriages.

Therefore, our answer is 6.

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3 years ago
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Komok [63]

Answer:

c

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Since it is a ratio to those who get bonus and don't, it is 24:80.

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3 0
3 years ago
What fraction of a clockwise revolution does the hour hand of a clock turn through, when it goes from a) 5 to 11? b)2 to 8? c)10
LenKa [72]

Answer: 1/2, 1/2, 1/4

Step-by-step explanation:

To find the fraction that the hour hand turns of a clockwise revolution, we have to find how long it is going then divide by 12

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b) 8 - 2 = 6, 6/12 = 1/2 so the hour hand turns by 1/2 of a clockwise revolution

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13 - 10 = 3, 3/12 = 1/4 so the hour hand turns by 1/4 of a clockwise revolution

4 0
2 years ago
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(6,2)


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