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Mariana [72]
2 years ago
12

PLEASE HELP, EASY QUESTION

Mathematics
2 answers:
alukav5142 [94]2 years ago
5 0
I’m pretty sure it’s a/c=b/d. Bc don’t a=c and b=d?
GaryK [48]2 years ago
4 0

Answer:

All of the following proportions are equivalent except a/d=c/b.

a/b=c/d

b/a=d/c => a/b = c/d

a/d=c/b not equal to a/b = c/d

a/c=b/d => a/b = c/d

Step-by-step explanation:

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PtichkaEL [24]
D: (-infinity, 0) U (0, infinity) because you cant have a zero in the bottom of the fraction
4 0
3 years ago
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Help me with this please
liraira [26]

Answer:

B

Step-by-step explanation:

the data value of x is 0 the the value would be .75 times that by 2 get 1.25

8 0
2 years ago
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
2 years ago
What is the measurement of Angel ADC in quadrilateral ABCD? <br><br> -Thank You
skad [1K]
<ADC = <BAD = 115

hope it helps
5 0
3 years ago
Melissa walked at a rate of 88 feet per minute. What was her approximate speed to the nearest tenth of a mile
Illusion [34]

88x60=5280

I believe it's 1 mile.

7 0
3 years ago
Read 2 more answers
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