2 years ago

Find the solution to the system by graphing

Mathematics

1 answer:

Cloud [144]2 years ago

4 0

Answer:

y = -3x + 1 (Red line)

y = x - 7 (Blue line)

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How to solve -4{1-2x}-1=7x

mina [271]

Answer:

Step-by-step explanation:

$-4(1-2x)-1=7x\qquad\text{use the distributive property}\ a(b+c)=ab+ac\\\\(-4)(1)+(-4)(-2x)-1=7x\\\\-4+8x-1=7x\qquad\text{combine like terms}\\\\8x+(-4-1)=7x\\\\8x-5=7x\qquad\text{add 5 to both sides}\\\\8x-5+5=7x+5\\\\8x=7x+5\qquad\text{subtract}\ 7x\ \text{from both sides}\\\\8x-7x=7x-7x+5\\\\x=5$

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The ratio table shows the weights for different amounts of snow. Find the unit rate in pounds per cubic foot. Give your answer i

kykrilka [37]

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Step-by-step explanation:

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2 years ago

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GaryK [48]

Answer:

[-5, 4) ∪ (4, ∞)

Step-by-step explanation:

Given functions:

$f(x)=\dfrac{1}{x-3}$

$g(x)=\sqrt{x+5}$

Composite function:

$\begin{aligned}(f\:o\:g)(x)&=f[g(x)]\\ & =\dfrac{1}{\sqrt{x+5}-3} \end{aligned}$

Domain: input values (x-values)

For $(f\:o\:g)(x)$ to be defined:

$x+5\geq 0 \implies x\geq -5$

$\sqrt{x+5}\neq 3 \implies x\neq 4$

Therefore, $-5\leq x < 4$ and $x > 4$

⇒ [-5, 4) ∪ (4, ∞)

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1 year ago

If x = -3, calculate the value of x3 - x (the 3 after the x is meant to be cubed unit)

Ainat [17]

I think the answer would be -24

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MatroZZZ [7]

The answer is D) 3,404

By putting the table values into the progam DESMOS, and then putting in the formula, the answer will be given- and that answer is 3,404.

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