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Greeley [361]
3 years ago
13

Helppppppppppppppppppppppppppppppppppppp

Mathematics
1 answer:
leonid [27]3 years ago
5 0
The second choice, y+1=6/11(x+4), is correct.

We first find the slope using the formula

m=(y₂-y₁)/(x₂-x₁)

Using our points, this gives us
m=(-1-5)/(-4-7) = -6/-11 = 6/11

Point-slope form is
y-y₁=m(x-x₁)

Using the first point, we would have
y-5=6/11(x-7)

Using the second point, we would have
y--1=6/11(x--4)
y+1=6/11(x+4)
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the monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $12. Find the prob
vlada-n [284]

Answer:

0.7493 or 74.93%

Step-by-step explanation:

We are given;

Population mean; μ = 100

Population standard deviation; σ = 12

Sample mean 1; x1¯ = 90

Sample mean 2; x2¯ = 120

Z-score formula of the data given is;

z = (x¯ - μ)/σ

z1 = (90 - 100)/12

z1 = -0.83

z2 = (120 - 100)/12

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Since we wan to Find the probability that a randomly selected bill is between $90 to $120.

Thus;

P(90 < x¯ < 120) = P(−0.83 < Z < 1.67)

Probability will be gotten from online probability with 2 z-scores calculator to get;

P = 0.7493

7 0
2 years ago
Jorge's rectangular garden was 17 feet long and had a perimeter of 54 feet. He made his garden 5 feet longer. What is the area o
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5 0
3 years ago
Read 2 more answers
Can someone help me understand this pls? (Provide an explanation)
Tpy6a [65]

Answer:

fales

Step-by-step explanation:

3 0
2 years ago
Find the values of x and y
eimsori [14]

Answer:

y = 70 and x = 20

Step-by-step explanation:

180 - 40 = 140

140/2 = 70

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3 0
3 years ago
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