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2 years ago

13

What is the slope between the following problems?(8,-4) and (2,-4)

2 answers:

Varvara68 [4.7K]2 years ago

7 0

Answer:

Slope = 0/-6

(Sorry for the bad handwriting)

Lapatulllka [165]2 years ago

7 0

First, you will need to subtract your Y1 for your Y2. In this case your Y2 will be -4 and your Y1 is also -4. -4 minus -4 equals 0. This will be your numerator of your fraction to divide at the end. Now you need to subtract your X1 from your X2. Your X2 will be 2 and your X1 will be 8. 2 minus 8 equals -6. This will be your denominator. Finally, you will divide 0 by -6. This equals 0. Therefore, your slope is 0.

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Galina-37 [17]

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3 years ago

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qwelly [4]

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3 years ago

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3 years ago

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2 years ago

If 65 percent of the population of a large community is in favor of a proposed rise in school taxes, approximate the probability

xz_007 [3.2K]

Answer: a) 0.99917 b) 0.7054 c) 0.9820

Step-by-step explanation:

Let X denotes the number of people are in favor of a proposed rise in school taxes.

Era re given that p(probability that a person is in favor of a proposed rise )= 0.65

Sample size : n= 100

Mean= np = 100(0.65)=65

Standard deviation: $\sigma=\sqrt{np(1-p)}\\\\=\sqrt{100(0.65)(0.35)}\\\\=4.76969600708\approx4.77$

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$P(x\geq50)=P(\dfrac{x-\mu}{\sigma}\geq\dfrac{50-65}{4.77})\\\\=P(z\geq-3.144)\\\\=P(z-z)=P(Z$

b) between 60 and 70 inclusive who are in favor;

$P(60$

c) fewer than 75 in favor.

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3 years ago