What is the simplest form of the expression -2x^2(x+5)+x(2x^2-10x)+x

Answers

Answer 1

Answer: For this case we have the following expression:
-2x ^ 2 (x + 5) + x (2x ^ 2-10x) + x
Rewriting we have:
-2x ^ 3 - 10x ^ 2 + 2x ^ 3 - 10x ^ 2 + x
Grouping terms with the same exponent:
x ^ 3 (-2 + 2) + x ^ 2 (-10 - 10) + x
-20x ^ 2 + x
Rewriting:
x (-20x + 1)
Answer:
The simple form of the expression is:
x (-20x + 1)

Answer 2

Answer:

Step-by-step explanation:

-2x^2(x-5)+x(2x^2-10x)+x

Distribute-2x^2 through parentheses

-2x^3+10x^2+(2x^2-10x)+x

Distribute x through parentheses

-2x^3+10x^2+2x^3-10x^2+x

Eliminate the opposites

-2x^3+2x^3=0 and 10x^2-10x^2=0 both sets of opposites cancel each other out, which leaves us with just x remaining.

The simplest form of of the expression is x.

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Answers

Lets solve this step by step.A is not a positive because (-9)*8=-72.B if positive because -12*(-3)=36. A negative times a negative is a positive.C is also a positive because (-2/5)*(-4) is a positive.D is not a positive because like A, one is negative and the other number is positive. A negative times a positive is a negative.I hope it helped!

We need to solve this by looking at each answer choice.

A. $- (w)/(9)=8$

To solve for w, we need to multiply by -9 on both sides.

So, $-(w)/(9) * -9 = 8 * -9\n\nw = -72$

This is not a positive solution. So eliminate A.

B. $(-12) = (y)/((-3))$

To solve for y, we need to multiply by -3 on both sides.

So, $(-12) * (-3) = (y)/((-3)) * (-3)\n\ny = 36$

This is a positive solution. This is one of our answers.

C. $[tex]-4* (-5)/(2)= -(2)/(5)z* -(5)/(2)\n\nz = 10$ [/tex]

We need to multiply by -5/2 on both sides to solve for z.

This is a positive solution. This is one of our answers.

D. $(1)/(7)x = -2$

We need to multiply by 7 on both sides to solve for x.

So, $(1)/(7) x * 7 = -2 * 7\n\nx = -14$

This is a negative solution. So this is not the answer.

So your final answer is B and C.

You paint 1313 of a wall in 1414 hour. At that rate, how long will it take you to paint one wall?

Answers

You paint 1313 of a wall in 1414 hour.
Now we need to find the rate in order you to paint one wall.

1313 : 1414 = 1 : X
1414 = 1313 X
X = 1.08

So the rate per one wall is 1.08 hours.

use the numbers and decimal to write a number in which the digit 2 is 1/10 the value of the digit 2 in 8.524

Answers

you would move the 2 over one space to the right in the decimal, so an example would be 4.342

8.254 because the two is in the tenths place now

A warehouse has 518 flash drives on hand. The warehouse manager decides to keep 50 flash drives for high-priority orders and fill six equal-size orders with the rest of the flash drives. How many flash drives are in each order? A. 36 B. 78 C. 86 D. 94

Answers

Answer:

The answer is option B : 78.

Step-by-step explanation:

A warehouse has 518 flash drives on hand.

The warehouse manager decides to keep 50 flash drives for high-priority orders and fill six equal-size orders with the rest of the flash drives.

So, remaining flash drives are = $518-50=468$

As there are 6 equal-size orders, so there will be $(468)/(6)= 78$ flash drives in each box.

Therefore, the answer is option B : 78.

B. 78 flash drives are in each order

Ms. White has 15 students in her first grade class. Troy is the line leader for the week, and Mackenzie is last because she was the line leader last week. In how many different ways can Ms. Whites class line up for lunch?

Answers

The first place and 15th place are already decided, so we have to find the number of
different ways that the other 13 students can line up, in the places from #2 to #14.

2nd place can be any one of 13 people. For each of those . . .
3rd place can be any one of 12 people. For each of those . . .
4th place can be any one of 11 people. For each of those . . .
.
.
.
13th place can be any one of 2 people. For each of those . . .
14th place has to be the one student who is left.

Total number of ways that 13 students can line up in places #2 through #14 is

(13 x 12 x 11 x 10 x 9 x 8 x 7 x 6 x 5 x 4 x 3 x 2 x 1)

That number is called "thirteen factorial". The number is 6,227,020,800 .

When you write it in math, you write it like this: 13!

Determine if y = 2x + 1 is a function

Answers

in order to find out if its a fucntion you have to be able to graph it on

its a function. this is because you can solve for k. it it were not a function, the equation would not make sense.

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