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maks197457 [2]
3 years ago
10

What is the value of x? enter your answer into the box X=

Mathematics
1 answer:
Serggg [28]3 years ago
7 0

Answer:

x = 19

Step-by-step explanation:

3x - 3 = [6 (x - 10)]

3x - 3 = 6x - 60

3x - 6x = - 60 + 3

- 3x = - 57

- x = - 57/3

- x = - 19

x = 19

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Answer:

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Step-by-step explanation:

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irinina [24]

Answer:

-19k ≠ 0

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Step-by-step explanation:

k/4 - 5k + 1 = 1

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3 years ago
F(x)=-9x^2-2x and g(x)=-3x^2+6x-9, find (f-g)(x) and (f-g)(-4)
Alona [7]

Answer:

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Step-by-step explanation:

f(x) =  - 9 {x}^{2}  - 2x,  \:  \: g(x) =  - 3 {x}^{2}  + 6x - 9 \\ (f - g)(x) = f(x)  - g(x) \\  = - 9 {x}^{2}  - 2x - (- 3 {x}^{2}  + 6x - 9) \\  =  - 9 {x}^{2}  - 2x  + 3 {x}^{2}   -  6x  +  9 \\    \purple{ \boxed{ \bold{(f - g)(x)= - 6 {x}^{2}  - 8x + 9}}} \\ (f - g)( - 4)= - 6 {( -4 )}^{2}  - 8( - 4) + 9 \\  =  - 6 \times 16 + 32 + 9 \\  =  - 96 + 41 \\ \red{ \boxed{ \bold{(f - g)( - 4)= - 55}}}

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3 years ago
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Answer:

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Step-by-step explanation:

A polygon is a close sided shape with no curves. Since F and D have curves they are not polygons. Regular polygons have side lengths which are all equal to each other. C and E are regular polygons. Irregular polygons are polygons whose sides have different values from each other. A and B are irregular.

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3 years ago
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