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3 years ago

Find f(-7) if f(x) = 2x 8.

2 answers:

6 0

F(-7) = 2x + 8, f(-7) = 2(-7) + 8, f(-7) = -14 + 8, f(-7) = -6 Hope this helps you out, I didn't know if there was a plus sign between 2x and 8 but hope this helps you out!

Sloan [31]3 years ago

5 0

Answer:

$f(-7)=-6$

Step-by-step explanation:

we have

$f(x)=2x+8$

substitute the value of $x=-7$ in the function

$f(-7)=2(-7)+8=-6$

$f(-7)=-6$

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Elsie bought a video game for $85. If the store charges 170% of its cost for the game, how much is the store's profit? *Hint: On

nikklg [1K]

Answer:

$ 59.5

Step-by-step explanation:

Calculation for how much is the store's profit

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2 years ago

Solve the inequality.<br> 3x+6<3(x-7)

GarryVolchara [31]

<h3> $\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{3x+6 < 3(x-7) } \end{gathered}$} }$ </h3>

Simplify both sides of the inequality.

$\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{3x+6 < 3x-21 } \end{gathered}$} }$

Subtract 3x from both sides.

<h3> $\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{3x+6-3x < 3x-21-3x } \end{gathered}$} }$ </h3><h3> $\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{6 < -21 } \end{gathered}$} }$ </h3>

Subtract 6 from both sides.

<h3> $\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{6-6 < -21-6 } \end{gathered}$} }$ </h3>

$\boxed{\large\displaystyle\text{$\begin{gathered}\sf \bf{0 < -27} \end{gathered}$} }$

<h2>There are no solutions.</h2><h3>Standard form: x ∈ ∅</h3>

6 0

1 year ago

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