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Gala2k [10]
3 years ago
8

4x - 23(8x + 3x + 5x2)​

Mathematics
1 answer:
velikii [3]3 years ago
7 0

Answer:

Let's simplify step-by-step.

4x^4-2x^3-(8x^4+3x^3+5x^2)

Distribute the Negative Sign:

4x^4-2x^3+-1(8x^4)+-1(3x^3)+-1(5x^2)

4x^4+-2x^3+-1(8x^4)+-1(3x^3)+-1(5x^2)

4x^4+-2x^3+-8x^4+-3x^3+-5x^2

Combine Like Terms:

4x^4+-2x^3+-8x^4+-3x^3+-5x^2

(4x^4+-8x^4)+(-2x^3+-3x^3)+(-5x^2)

-4x^4+-5x^3+-5x^2

Answer:

-4x^4-5x^3-5x^2  This is the answer

I hope this help you :)

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Choose all the factors of 12. (Check all that apply.) multiple choice
ira [324]

Answer:

Hey!!!!

the answers are 2, 6, 3, 12, 4, 1

Please read the explanation... it always helps..

Step-by-step explanation:

Alrighty... let's begin....

A factor is any number that you can multiply by another number to get a product

So choose the numbers you can mutiply by another number to get twelve... which are...  2, 6, 3, 12, 4, 1

if you are wondering why twelve well... 12 x 1 = 12

i hope this helps!!!!

7 0
2 years ago
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Solve this system using matrices:
sweet [91]

Answer:

Step-by-step explanation:

A system of linear equations is one which may be written in the form

a11x1 + a12x2 + · · · + a1nxn = b1 (1)

a21x1 + a22x2 + · · · + a2nxn = b2 (2)

.

am1x1 + am2x2 + · · · + amnxn = bm (m)

Here, all of the coefficients aij and all of the right hand sides bi are assumed to be known constants. All of the

xi

’s are assumed to be unknowns, that we are to solve for. Note that every left hand side is a sum of terms of

the form constant × x

Solving Linear Systems of Equations

We now introduce, by way of several examples, the systematic procedure for solving systems of linear

equations.

Here is a system of three equations in three unknowns.

x1+ x2 + x3 = 4 (1)

x1+ 2x2 + 3x3 = 9 (2)

2x1+ 3x2 + x3 = 7 (3)

We can reduce the system down to two equations in two unknowns by using the first equation to solve for x1

in terms of x2 and x3

x1 = 4 − x2 − x3 (1’)

1

and substituting this solution into the remaining two equations

(2) (4 − x2 − x3) + 2x2+3x3 = 9 =⇒ x2+2x3 = 5

(3) 2(4 − x2 − x3) + 3x2+ x3 = 7 =⇒ x2− x3 = −1

8 0
4 years ago
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Manuela solved the equation below.
Leni [432]

Answer: the answer is really -8 (A)

Step-by-step explanation: because how do 0 make since u can't divide 3x and -8

3 0
3 years ago
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WILL GIVE BRAINLIEST<br> Solve for x <br> 5x-2+x=9+3x+10
xxMikexx [17]
5x-2+x=9+3x+10
6x-2=3x+19
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8 0
3 years ago
Jim worked 40 hours last week, plus 8 overtime hours at the time-and-a-half rate. His gross pay was $884. A. What was his hourly
marishachu [46]

Answer:

Hourly rate: $17.

Hourly overtime rate: $25.5.

Step-by-step explanation:

Let x represent Jim's hourly pay.

We have been given that Jim worked 40 hours last week. So amount paid in 40 hours would be 40x.

We are also told that his over time pay is time-and-a-half rate that is 1.5x.

The amount earned for working 8 overtime hours would be 8\cdot 1.5x=12x.

Since Jim's gross pay was $884, so we will equate amount earned in 40 hours and 8 hours of overtime with 884 as:

40x+12x=884

52x=884

\frac{52x}{52}=\frac{884}{52}

x=17

Therefore, Jim's hourly rate is $17.

Overtime rate would be 1.5x\Rightarrow1.5(17)=25.5

Therefore, Jim's hourly overtime rate is $25.5.

7 0
4 years ago
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