3 years ago

What's the coefficient in each

1 answer:

5 0

A coefficient is the number before any variables, which usually is a letter. <span>Variables that have no numbers have a coefficient of 1.</span>
a. 2 and 100
b. 1 and 4
c. 4 and 2

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Which expression is equivalent to this expression? x(2x+3) Question 1 options: 2x2+3 2x2+3x 2x2−3x 3x + 3

sleet_krkn [62]

Answer:

$2x^2+3x$ is the expression which is equivalent to $x\left(2x+3\right)$ .

In other words:

$x\left(2x+3\right)=2x^2+3x$

Step-by-step explanation:

Given the expression

$x\left(2x+3\right)$

solving

$x\left(2x+3\right)$

$\mathrm{Apply\:the\:distributive\:law}:\quad \:a\left(b+c\right)=ab+ac$

$a=x,\:b=2x,\:c=3$

$=x\cdot \:2x+x\cdot \:3$

$=2xx+3x$

$=2x^2+3x$ ∴ $2xx=2x^2$

Thus,

$x\left(2x+3\right)=2x^2+3x$

Therefore, $2x^2+3x$ is the expression which is equivalent to $x\left(2x+3\right)$ .

8 0

3 years ago

5. (9r 3 + 5r 2 + 11r) + (-2r 3 + 9r - 8r 2)

ad-work [718]

Answer:

7r³ - 3r² + 20r

Step-by-step explanation:

(9r³ + 5r² + 11r) + (-2r³ + 9r - 8r²)

You can get rid of the parentheses since there is nothing to distribute.

9r³ + 5r² + 11r - 2r³ + 9r - 8r²

Combine like factors.

7r³ - 3r² + 20r

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3 years ago

Write and solve a real world word problem in which there are three tables for every 8 chairs

mylen [45]

Fsdfsdfsdfsdfsdfsdfsdfsdf

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Braden has already taken 1 page of notes on his own, and he will take 2 pages during each hour of class. Write an equation that

beks73 [17]

Answer:

2h=2p

1h=1p

Step-by-step explanation:

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3 years ago

5. Joe and Mike went video game shopping and it cost $69.00. Mike had a

Liula [17]

Answer:

it would be 20 I'm not 100 percent tho

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3 years ago