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timurjin [86]
3 years ago
14

Given f(x) = 5x - 1 what is f(-2)?

Mathematics
1 answer:
Finger [1]3 years ago
3 0

Answer:

-11

Step-by-step explanation:

Plug in -2 for x

5(-2) - 1

Order of operations (or PEMDAS) tells you to multiply first giving you:

-10 - 1

-10 - 1 = -11

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You are designing a ramp where the horizontal distance is twice the vertical rise. what will be the ramp angle to the nearest te
ankoles [38]
Use the definition of tangent

or inv tangent (arctan or atan)

tan(theta) = opposite side/ adjacent side

the vertical rise would be the opposite side, the horozontal distance would be the adjacent side

let rise = y
let distance= x
x=2y

so tan(theta) = y/2y
tan(theta) = 1/2

theta = atan(1/2)

grab a handy dandy calculator, unless you know this conversion off the top of your head
7 0
3 years ago
Help with 6 a and b please
34kurt

Answer:

a) y=\frac{50}{x}

b) y=25 when x=2

Step-by-step explanation:

y=\frac{k}{x} since y varies inversely with x.

We need to find the constant, k.

Let's use a point (x,y) on the curve.

We are given an (x,y)=(5,10):

10=\frac{k}{5}

Multiply both sides by 5:

10(5)=k

50=k.

So the equation is:

y=\frac{50}{x}

What is y when x=2?

y=\frac{50}{2}

y=25

8 0
3 years ago
Suki split five dog treats equally among her six dogs. which fraction represents this division
STALIN [3.7K]

Answer:

5/6

Step-by-step explanation:

You only have 5 dog treats and there's 6 dogs, you have to divide the 5 dog treats among the 6 dogs so the 5 goes on the top, because that's what you're dividing.

7 0
3 years ago
What is angle 1 a dangle 2 called
docker41 [41]

Answer:

Adjacent angles

Step-by-step explanation:

4 0
4 years ago
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What is 6 divided into 3,540
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