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Elden [556K]
3 years ago
11

A line passes through (9,-8) and has a slope of negative 4/3

Mathematics
1 answer:
uranmaximum [27]3 years ago
6 0

Answer:

Step-by-step explanation:

Point slope form is: y-y1=m(x-x1) given point (x1,y1) and slope m

therefore the line is y+8 = (-4/3)(x-9)

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2x - 11 = -8x + 14<br> Simplify
Sauron [17]

Answer:

x = 2.5

Step-by-step explanation:

2x - 11 = -8x + 14

Add 8x to both sides

10x - 11 = 14

Add 11 to both sides

10x = 25

Divide both sides by 10

x = 2.5

7 0
3 years ago
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Assume that the weight of two year old babies have distribution that is approximately normal with a mean of 29 pounds and a stan
Lana71 [14]

Answer:

25.15 ponds is the weight of two year old baby corresponds to 10th percentile.      

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 29 pounds

Standard Deviation, σ = 3 pounds

We are given that the distribution of weight of two year old babies is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

We have to find the value of x such that the probability is 0.10

P(X < x)  

P( X < x) = P( z < \displaystyle\frac{x - 29}{3})=0.10  

Calculation the value from standard normal z table, we have,  

P(z < -1.282) = 0.10

\displaystyle\dfrac{x - 29}{3} = -1.282\\x = 25.154 \approx 25.15

Thus, 25.15 ponds is the weight of two year old baby corresponds to 10th percentile.

5 0
3 years ago
A pack of brownies cost $6.60 If the price per brownie stays the same, what would be
cupoosta [38]

Answer:

19.8

Step-by-step explanation:

3x6.6

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The ratio of students to teachers at a school is 19:1 how many students are there in each total of people?
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Answer:

D

Step-by-step explanation:

19*40= 760

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2 years ago
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3/20 is the probability of blue marble

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