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lilavasa [31]
3 years ago
12

PLEASE HELP ME 10 POINTS THIS HAS 2 PARTS

Mathematics
1 answer:
nalin [4]3 years ago
7 0

Answer:

B: 250

Y: Total cost

M:50

X: Hours renting

Equation: y=50x+250

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A marketing firm claims that its ad campaign will increase sales for a fast-food chain by 15%. In a random sample of 49 stores,
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Answer:

4.20

Step-by-step explanation:

Given data:

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standard deviation 'σ'= 5

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In order to determine z-value, we use the formula i.e

z=( x-μ ) / (σ/\sqrt{n} )

z=( 18-15) / (5/\sqrt{49 )

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z= 4.20

4 0
4 years ago
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34kurt

-12 = 3 - 2k - 3k

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3 years ago
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