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wel
3 years ago
8

If f(x) = 2x+4 and g(x) = x^2-3 find each value

Mathematics
1 answer:
Ann [662]3 years ago
7 0

1. 2(-3) + 4

 -6 + 4 = -2

2. -4^2 - 3

   16 - 3 = 13

3.  2 (m + 2) + 4

   2m + 4 + 4

   2m + 8

   2m = -8

   m = -4

4. i forgot how to do this. sorry :'(

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Evan measured a house and made a scale drawing. The scale of the drawing was 3 centimeters = 7 meters. What is the scale factor
finlep [7]
390 because Evan measured a house and made a scale drawing
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3 years ago
Chubb early on a snack store and is showing Billy Bob how to make some of the items he sells currently he is showing Billy Bob h
vagabundo [1.1K]
\bf \begin{array}{lccclll}
&\stackrel{lb}{amount}&\stackrel{lb}{price}&\stackrel{total}{price}\\
&------&------&------\\
\textit{plain popcorn}&p&3&3p\\
\textit{caramel popcorn}&c&2.2&2.2c\\
-------&------&------&------\\
mixture&10&2.5&25
\end{array}

so hmm whatever "p" and "c" are, we know that p + c = 10.

and we also know that 3p + 2.2c = 25

thus

\bf \begin{cases}
p+c=10\implies \boxed{c}=10-p\\
3p+2.2c=25\\
----------\\
3p+2.2\left(\boxed{10-p}  \right)=25
\end{cases}
\\\\\\
3p+22-2.2p=25\implies 3p-2.2p=25-22\implies 0.8p=3
\\\\\\
p=\cfrac{3}{0.8}\implies p=\cfrac{15}{4}\implies p=3.75

how much will it be needed for caramel popcorn?  well, c = 10 - p.
4 0
3 years ago
Federal funding for the national center for missing adults declined from 1.5 million in 2002 to 1 million in 2006. Find the perc
kogti [31]

Answer:

Step-by-step explanation:

Federal funding for the national center for missing adults declined from 1.5 million in 2002 to 1 million in 2006. The amount by which it decreased is determined by subtracting the amount in 2006 from the amount in 2002. It becomes

1500000 - 1000000 = 500000.

The percent decrease in the federal funding from 2002 to 2006 will de determined by dividing the decrease by the amount in 2002 and multiplying by 100. It becomes

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5 0
4 years ago
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y=x-(2x+5)
distribute the negative symbol
y=x-2x-5
combine like terms
y=-x-5
and that is our final answer
7 0
4 years ago
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