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atroni [7]
3 years ago
8

The graph of an equation has a minimum y value of 12. This minimum occurs at an x value of 3. What is true of the graph of the e

quation? a If x is less than 3, then y is less than 12. b If x is less than 3, then y increases as x increases. c If x is greater than 3, then y decreases as x increases. d If x is greater than 3, then y increases as x increases. Listen NEXT
Mathematics
1 answer:
Vika [28.1K]3 years ago
7 0

Answer:

the answer is D

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

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7 0
3 years ago
Need help please show your work <br>find the missing angles of triangles ​
anzhelika [568]

Answer:

angle: 71

x = -3

Step-by-step explanation:

step 1: 180-(55+54) = 71

step 2: x+74=71 (subtract 74 from both sides)

step 3: x=-3

step 4: -3+74=71

3 0
2 years ago
8.
Alenkinab [10]

Answer:

17/5

Step-by-step explanation:

23=5x+6

23-6=5x

17=5x

X=17/5

6 0
3 years ago
A normal distribution has a standard deviation equal to 39. What is the mean of this normal distribution if the probability of s
Naily [24]

Answer:

The mean is \mu = 131

Step-by-step explanation:

Problems of normally distributed samples are 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:

\sigma = 39

What is the mean of this normal distribution if the probability of scoring above x = 209 is 0.0228?

This means that when X = 209, Z has a pvalue of 1-0.0228 = 0.9772. So when X = 209, Z = 2.

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

2 = \frac{209 - \mu}{39}

209 - \mu = 2*39

\mu = 209 - 78

\mu = 131

The mean is \mu = 131

7 0
2 years ago
The height of a building is 943 feet which is about 481 feet higher than another building. What is the height of the second buil
pshichka [43]

Answer: 462


Step-by-step explanation:

943-481

Answer=462

6 0
3 years ago
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