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3 years ago

Explain how to solve this system algebraically

Mathematics

2 answers:

gulaghasi [49]3 years ago

4 0

Answer:

take the -12 to behind the equal and replace with 0 then solve the polynomial

garik1379 [7]3 years ago

4 0

4x-2y=-12.....I
2x-y=-6.......II

2x+6=y......iii

From eqn I
4x-2(2x-y)=-12
or,4x-4x+2y=-12
or,2y=-12
Y=-6

In eqn iii
2x+6=-6(y=-6)
or,2x=-12
X=-6

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Which of the binomials below is a factor of this trinomial? 4x2 + 21x + 5

guapka [62]

Answer:

B. 4x + 1

Step-by-step explanation:

4x^2 + 21x + 5

= (4x + 1)(x + 5)

Factors of this trinomial are (4x + 1) and (x + 5)

Answer

(4x + 1)

8 0

3 years ago

Write the equation of the line that passes through the points (-6, -9) and

e-lub [12.9K]

Answer:

y - 7 = 16/13(x - 7)

General Formulas and Concepts:

Alg I

Point-Slope Form: y - y₁ = m(x - x₁)

x₁ - x coordinate

y₁ - y coordinate

m - slope

Slope Formula: $m=\frac{y_2-y_1}{x_2-x_1}$

Step-by-step explanation:

Step 1: Define

Point (-6, -9)

Point (7, 7)

Step 2: Find slope m

Substitute: $m=\frac{7+9}{7+6}$
Add: $m=\frac{16}{13}$

Step 3: Write equation

y - 7 = 16/13(x - 7)

3 0

3 years ago

Factor each expression by factoring out the common binomial 5a(y + 4) + 8(y + 4)

Tems11 [23]

Answer:

Factoring the term $5a(y + 4) + 8(y + 4)$ we get $(y+4)(5a+8)$

Step-by-step explanation:

We need to factor the term: $5a(y + 4) + 8(y + 4)$

Factoring:

$5a(y + 4) + 8(y + 4)$

Taking (y+4) common

$(y+4)(5a+8)$

It cannot be further factored.

So, Factoring the term $5a(y + 4) + 8(y + 4)$ we get $(y+4)(5a+8)$

6 0

3 years ago

What is the axis of symmetry for y=6x^2+6x

Sonja [21]

Answer:

x=3

Step-by-step explanation:

6 0

3 years ago

I need help with this one asap

Marianna [84]

Answer:

the pics too small I cant read itttt

Step-by-step explanation:

make it bigger and I can do ittt

8 0

3 years ago