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Keith_Richards [23]
3 years ago
7

Given f(x) = x^2 - 5x, find f(x-3)

Mathematics
1 answer:
Hoochie [10]3 years ago
3 0

Answer:

f(x-3)= x^2 -11x +24

Step-by-step explanation:

We want to find an equivalent expression for f(x-3)

To do this, we can simply substitute every 'x' variable in f(x) by 'x-3'

Therefore f(x-3)= (x-3)^2 -5*(x-3)

Lets re arrange the expression by grouping terms.

f(x-3)=x^2 - 6x +9 -5x + 15

f(x-3)= x^2 -11x +24

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x - 5 ≤ 6 - 5

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x ≤ 6

8 0
3 years ago
A used book store also started selling used CDs and videos. In the first week, the store sold 40 used CDs and videos, at 4.00 pe
masha68 [24]

Answer:

30 CDs and 10 Videos were sold.

Step-by-step explanation:

Given that a used book store also started selling used CDs and videos. In the first week, the store sold 40 used CDs and videos, at 4.00 per CD and 6.00 per video.

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Let CDs be x and Videos be y

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and 4x+6y = 180

Two simultaneous equations in two variables and can be solved by elimination method

multiply I equation by 4 and subtract from II.

2y = 20

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30 CDs and 10 Videos were sold.

4 0
3 years ago
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Alex_Xolod [135]

Answer:

25

Step-by-step explanation:


8 0
3 years ago
What is the slope of the line represented by the equation y = -1/2x + 1/4?
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<em>m=-1/2</em>

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The equation is in y=mx+b form. M is the slope. In this equation, -1/2 is m.

Therefore the slope is -1/2.

7 0
3 years ago
Read 2 more answers
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