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fgiga [73]
3 years ago
12

B) f(x) = (10 - 3x)(4 - 5x)

Mathematics
2 answers:
pantera1 [17]3 years ago
8 0

Answer:

15x2 - 62x + 40

Step-by-step explanation:

(10 - 3x)(4 - 5x)= 10 x 4 + 10 x -5x - 3x x 4 - 3x x -5x = 15x2 - 62x + 40

f(x) is a parabola, now you have to graph

babymother [125]3 years ago
7 0

Answer:

x=10/-3, 4/5

Step-by-step explanation:

f(x) = (10 - 3x)(4 - 5x)

10-3x=0

-3x=-10

x=10/3

4 - 5x = 0

-5x = -4

x = 4/5

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<h3>Answer:    -20</h3>

==========================================================

Work Shown:

Let x be the location of E on the number line.

Since C is the midpoint of E and F, this means we can find C's location by adding E and F together and dividing that sum by 2

midpoint = (endpoint1 + endpoint2)/2

C = (E+F)/2

Plug in E = x, C = -8 and F = 4. Then solve for x

C = (E+F)/2

-8 = (x+4)/2

(x+4)/2 = -8

x+4 = 2(-8) .... multiplying both sides by 2

x+4 = -16

x = -16-4 .... subtract 4 from both sides

x = -20

The location of point E on the number line is -20

-------------

As a check, lets add E and F to get E+F = -20+4 = -16

Then cut this in half to get -16/2 = -8, which is the proper location of point C

This confirms our answer.

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3 years ago
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cestrela7 [59]

Answer:

Step-by-step explanation:

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