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kiruha [24]
2 years ago
5

Find f(7) for the function below. F(x)=1/2 x 2^x

Mathematics
1 answer:
Anastasy [175]2 years ago
8 0

64

Step-by-step explanation:

\begin{aligned}\rm f(x)&=\rm\frac{1}{2}\times 2^x\\\rm f(7)&=2^{-1}\times 2^7\\&=2^{-1+7}\\&=2^{7-1}\\&=2^6\\&=2^6\\&=\bf 64\end{aligned}

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How many computers must the AB Computer Company sell to break even? Let x be the number of computers.
Eduardwww [97]

Answer:

The Company AB must sell 116 computers to break even

Step-by-step explanation:

we have

R(x)=1.5x -----> equation A

C(x)=145+\frac{1}{4}x ----> equation B

where

C is the cost function

R is the revenue function

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we know that

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3 years ago
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3 years ago
Adrienne operates the milkshake machine at Burgers and Shakes. on Monday she added whipped cream to 210 shakes.This was 70% of t
Natalka [10]

Answer:

Total number of milkshakes sold on Monday = 300

Number of milkshakes without whipped cream = 90

Step-by-step explanation:

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Adrienne adds whipped cream to 210 milk shakes which is 70% of the total milk shakes sold.

To find the total milkshakes sold.

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Let the total number of milkshakes sold on Monday be = x

Percentage of milkshakes with whipped cream added to them = 70%

Number of milk shakes with added whipped cream can be given as:

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We know that the number of milkshakes with whipped cream added to them = 210.

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0.7x=210

Solving for x

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\frac{0.7x}{0.7}=\frac{210}{0.7}

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Number of milkshakes without whipped cream = 300-210= 90

6 0
3 years ago
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