3 years ago

How you solve systems of equations

Mathematics

1 answer:

garri49 [273]3 years ago

8 0

Look it up on the cumputer

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kiruha [24]

B. 3y+1

Hope this helps! :)

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2 years ago

TEKS 7.10.A, 7.10.C

ch4aika [34]

Answer:

a=possible amount

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Step-by-step explanation:

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2 years ago

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

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2 years ago

Fill in the reason that justifies the step to solve for x in the diagram.

aleksandr82 [10.1K]

Answer is 13 42-3=39÷3=13

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3 years ago

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Which of the following is the most appropriate unit to describe the rate at which people are entering a theme park?

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Ft/s or you could do m/s

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