MATHEMATICS
HIGH SCHOOL

{2x - 6y + 2z = 3

{5x - 2y + 5z = 9

A. (5,-2,7)

B. (-5,2,7)

C.(5,2,-7)

D. No solution

Use a matrix to find the solution to the system of equations.

{-8x - 8y = -16

{6x - 9y = -108

A.(-6,8)

B.(6,8)

C.(8,-6)

D. (6,-8)

Answer:

Hi, here are the answers.

1) D. No solution

2) A. (-6, 8)

Thank you :)

MIDDLE SCHOOL

5x² + 7x - 5 what is the simplify expressions?

Answer: It’s already simplified.

You can’t group any of the digits as they all have different values.

HIGH SCHOOL

149 ÷ 71

≈ 140 ÷ 70

= 140 ÷ 10

÷ 7

=___÷ 7

Answer: 14

Step-by-step explanation:

The ______ is asking what 140 ÷ 10 is

140 ÷ 10 = 14

HIGH SCHOOL

How do I write the following as an Algebraic Expression

W lunches at $9 each. Please help

9w.

$9 per lunch (w).

So, 9(w) or 9w

$9 per lunch (w).

So, 9(w) or 9w

HIGH SCHOOL

Can someone please help me with my Geometry homework please?

What's the question that you need help with?