2 years ago

Which three expressions are equivalent to the expression 3x − 12 − 2(x + 12)?

Mathematics

2 answers:

Sergio039 [100]2 years ago

6 0

Answer:

The answer should be x - 36

Step-by-step explanation:

enot [183]2 years ago

4 0

Answer:

Step-by-step explanation:

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Step-by-step explanation:

<u>Substitute f(0) into the function:</u>

$f(0) = - 9(3)^{0}$

<u>Include exponent:</u>

$f(0) = - 9(1)$

<u>Multiply:</u>

$f(0) = - 9$

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1 year ago

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Sam is 6 years older than marlon. The sum of their ages is 30. Find Sam and marlons age.

Triss [41]

Answer:

Sam = 18 and Marlon = 12

Step-by-step explanation:

If Sam is 6 years older but added is 30 then Sam could 18 and Marlon 12.

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3 years ago

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The tables represent two linear functions in a system,

Alenkasestr [34]

Answer:

Step-by-step explanation:

The slope-intercept form of an equation of a line:

$y=mx+b$

m - slope

b - y-intercept

The formula of a slope:

$m=\dfrac{y_2-y_1}{x_2-x_1}$

First table:

(-4, 26), (0, 10) → b = 10

$m=\dfrac{10-26}{0-(-4)}=\dfrac{-16}{4}=-4$

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Second table:

(-4, 14), (0, 2) → b = 2

$m=\dfrac{2-14}{0-(-4)}=\dfrac{-12}{4}=-3$

$\boxed{y=-3x+2}$

We have the system of equations:

$\left\{\begin{array}{ccc}y=-4x+10&(1)\\y=-3x+2&(2)\end{array}\right\\\\\text{Put (1) to (2):}\\\\-4x+10=-3x+2\qquad\text{subtract 10 from both sides}\\-4x=-3x-8\qquad\text{add 3x to both sides}\\-x=-8\qquad\text{change the signs}\\x=8\\\\\text{Put the value of x to (2):}\\\\y=-3(8)+2\\y=-24+2\\y=-22$

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2 years ago

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Yuliya22 [10]

Answer:

4. 9

5. 4

6. 35

Step-by-step explanation:

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3 years ago

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