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2 years ago

HELP ME PLEASEEE ILL GIVE BRAINLIEST ITS DUE TODAY

Mathematics

1 answer:

nikdorinn [45]2 years ago

6 0

Dang… I wish I can help.

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What is the value of variable for -4(y - 2) = 12<br> Explain please

Scrat [10]

Answer:

-4(y - 2) = 12

Standard form:

−4y − 4 = 0

Factorization:

−4(y + 1) = 0

Solutions:

y = −4

= −1

Step-by-step explanation:

7 0

2 years ago

You are carpeting a room in a house for your job. You have a boss that likes to play jokes, so instead of just giving you the di

forsale [732]

Answer:

$x^2-4x+3$

$63\ \text{sq. units}$

Step-by-step explanation:

l = Length = $\dfrac{x^2-x-6}{x-5}$

w = Width = $\dfrac{x^2-6x+5}{x+2}$

Area is given by

$A=lw\\\Rightarrow A=\dfrac{x^2-x-6}{x-5}\times\dfrac{x^2-6x+5}{x+2}\\\Rightarrow A=\dfrac{x^2-3x+2x-6}{x-5}\times\dfrac{x^2-5x-1x+5}{x+2}\\\Rightarrow A=\dfrac{(x-3)(x+2)}{x-5}\times\dfrac{(x-5)(x-1)}{x+2}\\\Rightarrow A=(x-3)(x-1)\\\Rightarrow A=x^2-4x+3$

Area of the room is $x^2-4x+3$ .

If $x=10$

Area of the room

$A=x^2-4x+3=10^2-4\times 10+3\\\Rightarrow A=63\ \text{sq. units}$

So, the amount of carpet needed would be $63\ \text{sq. units}$ .

4 0

2 years ago

Which number line models the expression -3 + 5 ?

damaskus [11]

I think the answer would be B

3 0

3 years ago

Answer Please first = brainliest only if correct.

Kisachek [45]

Answer:

3x + 2y = 315 -----(1)

2x + 4y = 450 -----(2)

from (1) 3x + 2y = 315

2y = 315-3x

y = 157.5 - 3/2x ---- (3)

substitute (3) into (2)

2x + 4y = 450

2x + 4(157.5 - 3/2x ) = 450

2x + 630 - 6x = 450

-4x = -180

x = 45 ---- (4)

substitute (4) into (3)

y = 157.5 - 3/2x

y = 157.5 - 3/2(45)

y = 90

a haircut,x = 45 minutes

dye hair,y = 90 minutes

3 0

3 years ago

Multiply 2x(x^2+2x-6)

Jlenok [28]

Hello from MrBillDoesMath!

Answer:

2x^3 + 4x^2 - 12x

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Discussion:

2x(x^2+2x-6) =

2x * x^2 + 2x*2x - 6(2x) =

2x^3 + 4x^2 - 12x

Thank you,

MrB

7 0

3 years ago

Read 2 more answers