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Kisachek [45]
3 years ago
5

(x-2)times (x^2+8x-1)

Mathematics
1 answer:
DerKrebs [107]3 years ago
6 0

Answer:

x^3+6x^2-17x+2

Step-by-step explanation:

(x-2)*(x^2+8x-1)

=x(x^2+8x-1)-2(x^2+8x-1)

=x^3+8x^2-x-2x^2-16x+2

collect like terms

= x^3+6x^2-17x+2

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When graphed in the (x,y) coordinate plane, at what point do the lines x - y = 12
Alex17521 [72]

Answer:

(14, 2).

Step-by-step explanation:

x - y = 12

y = 2

Solving this system:

Plug y = 2 into the first equation:

x - 2 = 12

x = 14.

Therefore the  point of intersection is at (14, 2).

4 0
3 years ago
204.6 is what percent of 125? Round to the nearest tenth.
Zina [86]

Answer:

255.8

Explanation:

To get the solution, you are looking for, you need to point out what we know.

1. We assume, that the number 125 is 100% - because it's the output value of the task.

2. We assume, that x is the value we are looking for.

3. If 125 is 100%, so we can write it down as 125=100%.

4. We know, that x is 204.6% of the output value, so we can write it down as x=204.6%.

5. Now we have two simple equations:

1) 125=100%

2) x=204.6%

where left sides of both of them have the same units, and both right sides have the same units, so we can do something like that:

125/x=100%/204.6%

6. Now we just have to solve the simple equation, and we will get the solution we are looking for.

7. Solution for what is 204.6% of 125

125/x=100/204.6

(125/x)*x=(100/204.6)*x       - we multiply both sides of the equation by x

125=0.48875855327468*x       - we divide both sides of the equation by (0.48875855327468) to get x

125/0.48875855327468=x

255.75=x

x=255.75

now you  have:

204.6% of 125=255.75

If you round 255.75  to the nearest tenth, it would be 255.8 because rounding to the nearest tenth the number will be  7 because 7 is in the tenth place in 255.<u>7</u>5, so you would round up because  anything about the number 5 you will round up and anything below 5 you round down and  when you round up you will get 255.8 which is your answer.

Hope this helps :)

5 0
2 years ago
Find the length of the unknown side. Round your number to the nearest tenth.
spin [16.1K]
The length of the unknown side is 17.5
3 0
3 years ago
if workers were able to pave 1/3 of your driveway in 40 minutes if they work at same rate what portion of driveway will they pav
Dafna1 [17]
40min is 1/3
implies 20min is 1/6
60min is 1/3+1/6=3/6=1/2
5 0
3 years ago
Multiply the polynomials(8x^2+6x+8)(6x-5)
HACTEHA [7]

Answer:

As i multiplied the answer i got is

48x^3-4x^2+18x-40

4 0
3 years ago
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