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Sophie [7]
3 years ago
13

What expression is equivalent to 4(x-7)+8

Mathematics
2 answers:
RoseWind [281]3 years ago
6 0

Answer:

D

Step-by-step explanation:

4(x-7)+8=4x-4*7+8=4x-28+8

Zanzabum3 years ago
5 0

Answer:

4x-28+8

Step-by-step explanation:

ANSWER SHOULD REALLY BE 4x-20 but thats not an option

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For the function f(x)=3xsquared- 2x+5 find f(1) f(-2) and f(a)
Oksanka [162]
f(x)=3x^2-2x+5\\\\
f(1):\ \ Substitude\ 1 \ as\ x\ into\ function:\\
f(1)=3*1^2-2*1+5=3-2+5=\textbf{6}\\\\
f(-2)\ \ Substitude\ x=-2\\
f(-2)=3*(-2)^2-2*(-2)+5=3*4+4+5=12+4+5=\textbf{21}\\\\
f(a)\ \ substitude\ x=a\\
f(a)=\underline{3a^2-2a+5}
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Step-by-step explanation:

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3 years ago
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Graph the function f(x)=3/2x−4. Use the line tool and select two points to graph.
iris [78.8K]

Answer:

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