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3 years ago

Please final exam !!!!!

Mathematics

1 answer:

zmey [24]3 years ago

5 0

No x = -10 cannot be an input value because the x is the number of students , which can only be from 0 and above. You cannot have negative students.

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How do I factor this problem

Keith_Richards [23]

Answer:

−(3x−2)(7x+4)

Step-by-step explanation:

4 0

3 years ago

Solve the following system by any method -8x-8y=0 -8x+2y=-20

iVinArrow [24]

$\fbox{Solution by using Matrix}$

$\text{Linear Equation} = -8x-8y=0 , -8x+2y=-20$

$\text{Rewrite the linear equations above as a matrix}$

$\left[\begin{array}{ccc}8&-8&0\\-8&2&-20\\\end{array}\right]$

$\text{Apply to Row2 : Row2 + Row1}$

$\left[\begin{array}{ccc}8&-8&0\\-8&-6&-20\\\end{array}\right]$

$\text{ Simplify rows}$

$\left[\begin{array}{ccc}8&-8&0\\0&1&10/3\\\end{array}\right]$

$\text{Note: The matrix is now in echelon form.}$ $\text{The steps below are for back substitution.}$

$\text{Apply to Row1 : Row1 + 8 Row2}$

$\left[\begin{array}{ccc}8&0&80/30\\0&1&10/3\\\end{array}\right]$

$\text{ Simplify rows}$

$\left[\begin{array}{ccc}1&0&10/3\\0&1&10/3\\\end{array}\right]$

$\text{Therefore, the solution is}$

$x= \dfrac{10}{3} \ \text{and} \ \ y=\dfrac{10}{3}$

7 0

3 years ago

Kyle and Leah both work in the evenings. Leah

MA_775_DIABLO [31]

Answer:

The awnser is March 15th because every 12 days they are off at the same time

Step-by-step explanation:

<h2>BRAINLIEST PLEASE</h2>

4 0

3 years ago

(-33.28 ÷ -5.2) ÷ -1.6 = ?

tigry1 [53]

Answer:

-4

Step-by-step explanation:

Use PEMDAS

5 0

3 years ago

Read 2 more answers

How many solutions are there to the following system of equations?

ANTONII [103]

I believe the answer is A because you cannot find x nor y

5 0

3 years ago