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liraira [26]
3 years ago
12

Y-1=-2(x+3) in standard form

Mathematics
1 answer:
romanna [79]3 years ago
4 0

Answer:

2x + y + 5 = 0

Step-by-step explanation:

y − 1 = -2 (x + 3)

y − 1 = -2x − 6

2x + y + 5 = 0

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5x+7y=10<br> 8x-5y=2<br> Please help!
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(x,y)=(64/81, 70/81) I can provide a description if needed. I used the process of elimination. 
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What is the value of k in the function ƒ(x) = 112 - kx if ƒ(-3) = 121?k = a0
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F(x) = 112 - kx
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5 0
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Read 2 more answers
What is the opposite -2/5
Yuri [45]

Answer:

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Step-by-step explanation:

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Fast-food restaurants spend quite a bit of time studying the amount of time cars spend in their drive-throughs. Certainly, the f
melisa1 [442]

Answer:

For the 99th percentile, we have X = 206 seconds.

Step-by-step explanation:

Problems of normally distributed samples can be solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.

In this problem, we have that:

\mu = 138.5, \sigma = 29

99th percentile:

Value of X when Z has a pvalue of 0.99. So we use Z = 2.325

Z = \frac{X - \mu}{\sigma}

2.325 = \frac{X - 138.5}{29}

X - 138.5 = 29*2.325

X = 205.92 = 206

For the 99th percentile, we have X = 206 seconds.

4 0
3 years ago
Mrs.scott has 30 pairs of shoes.Out of the 30 pairs 24 of them are black.what percent of shoes are black
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Do 24/30, which is 0.8. Convert this to a percentage

==============> 80%
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3 years ago
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