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Ulleksa [173]
3 years ago
6

Write 10:6 in the ratio 1:n A: 5:3 B: 1:1.6666 C: 1:4 D: 1:0.6

Mathematics
2 answers:
Vera_Pavlovna [14]3 years ago
5 0
You’re answer is D. You’re welcome.
Elenna [48]3 years ago
4 0

Answer:

Step-by-step explanation:

D=1:0.6

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X + 8 = -15, x = ?<br> What is X? Please give a explanation on how you got your answer
Katarina [22]

Answer:

-23

Step-by-step explanation:

I just did 8+15=23 but made it negative. so you can do

-23+8= -15

8 0
3 years ago
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Assume that adults have IQ scores that are normally distributed with a mean of 96 and a standard deviation of 15.7. Find the pro
astraxan [27]

Answer:

4.05% probability that a randomly selected adult has an IQ greater than 123.4.

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 question, we have that:

\mu = 96, \sigma = 15.7

Probability that a randomly selected adult has an IQ greater than 123.4.

This is 1 subtracted by the pvalue of Z when X = 123.4. So

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

Z = \frac{123.4 - 96}{15.7}

Z = 1.745

Z = 1.745 has a pvalue of 0.9595

1 - 0.9595 = 0.0405

4.05% probability that a randomly selected adult has an IQ greater than 123.4.

7 0
3 years ago
What is the reciprocal of 4/9​
Scrat [10]

Answer:

9/4

Step-by-step explanation:

Take the fraction and flip it

4/9

The reciprocal is 9/4

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3 years ago
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The answer is C. Isosceles Triangle .... 2 of the sides are equal
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