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3 years ago

12

(x-6)(x+ 3) = A. X^2 - 18 B. X^2 - 3x - 18 C. X^2 + 3x -18 D. X2 + 9x - 18

2 answers:

scoundrel [369]3 years ago

8 0

Answer:

x^2 - 3x - 18.

Step-by-step explanation:

step1- expand the brackets

step2- simplify answer

nlexa [21]3 years ago

4 0

Answer:

x^2 - 3x - 18

Step-by-step explanation:

Just follow in terms of FOIL

First, outer, inner, last. First means multiply the terms which occur first in each binomial, Outer means multiply the outermost terms in the product, Inner means multiply the innermost terms, and Last means multiply the terms which occur last in each binomial.

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baherus [9]

Pretty sure it’s the first answer

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2 years ago

Read 2 more answers

5x=4y make x the subject

oee [108]

Answer:

$x = \frac{4y}{5}$

Step-by-step explanation:

$5x = 4y\\\rule{150}{0.5}\\\frac{5x=4y}{5}\\\\\boxed{x = \frac{4y}{5}}$

Hope this helps.

4 0

3 years ago

PLEASE HELP The volume of a cube is defined by the function, V(x), where the volume is measured in cubic meters. Find a polynomi

olya-2409 [2.1K]

we have

$V(x)=x^3-12x^2+48x-64$

we know that

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$V=b^{3}$

where

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Using a graph tool------> find the roots of the polynomial

see the attached figure

x=4

so

$x^3-12x^2+48x-64=(x-4)^{3}$

therefore

<u>The answer is</u>

the length side of a cube is equal to (x-4)

5 0

3 years ago

Joana alugou um carro para fazer uma viagem de 36km sabendo q o carro percorre 12 km cm 1litro custa

saul85 [17]

Answer:

3 litros

Step-by-step explanation:

Joana alugou um carro para fazer uma viagem de 36km sabendo que o carro percorre 12 km cm 1 litro custa

Da pergunta:

12 km = 1 litro

36km = x

Cross Multiply.

12x = 36 × 1

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x = 3 litros

7 0

3 years ago

Write (-2 − 2i) + (10 − 4i) as a complex number in standard form.

romanna [79]

Answer:

8-6i

Step-by-step explanation:

complex number in standard form will be in the form of a+bi

(-2 − 2i) + (10 − 4i) , open parenthesis

-2- 2i +10 -4i, group like terms

-2+10 -2i -4i, combine like terms

8 - 6i

7 0

2 years ago