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3 years ago

How do you find the square roots of fractions. For example the square root of 9 over 16?

1 answer:

8 0

For the square root of a fraction, you could divide the fraction (top divided by the bottom) and then find the square root of the quotient. 9 divided by 16 is 0.5625, and the square root of 0.5625 is 0.75. / / / / For the other way to do it, you have to know that the square root of a fraction is the same thing as the square root of the top over the square root of the bottom. So the sqrt (9/16) = sqrt (9)/sqrt (16) = 3/4. (same thing as 0.75 .)

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PLEASE HELP ASAP!!! CORRECT ANSWER ONLY PLEASE!!!

ycow [4]

Answer: 0) 0.22

1) 0.20

2) 0.12

3) 0.14

4) 0.28

5) 0.04

Step-by-step explanation:

The total frequency is 33+30+18+21+42+6 = 150. This means they ran the experiment 150 times. The probability (P) is calculated by the satisfactory number of outcomes (frequency) divided by the total number of experiments/outcomes (total frequency):

$\begin{array}{c|c||lc}\underline{x}&\underline{f}&\underline{f\div 150}&\underline{\text{P}}\\0&33&33\div 150=&0.22\\1&30&30\div150=&0.20\\2&18&18\div 150=&0.12\\3&21&21\div 150=&0.14\\4&42&42\div 150=&0.28\\5&6&6\div 150=&0.04\end{array}\right]$

5 0

3 years ago

Read 2 more answers

. 1 Find f for the function f. f(x) = 3x² + 3, x > 0 And find the domain

konstantin123 [22]

Answer:

y = $\sqrt{\frac{x-3}{3} }$

Domain = [3, infinity)

Step-by-step explanation:

x = 3y^2 + 3

3y^2 = x - 3

y^2 = (x-3)/3

y = $\sqrt{\frac{x-3}{3} }$

8 0

3 years ago

Last question for today ✌

miv72 [106K]

Answer:

I think it is D

Step-by-step explanation:

7 0

3 years ago

Read 2 more answers

Assume that the average life of a refrigerator is 14 years, with the standard deviation given in part (a) before it breaks. Supp

fiasKO [112]

Answer:

The guarantee should be made of $X = 1.555 + 14\sigma$ years, in which $\sigma$ is the standard deviation given in part (a).

Step-by-step explanation:

Normal Probability Distribution:

Problems of normal distributions 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.

Assume that the average life of a refrigerator is 14 years

This means that $\mu = 14$

The standard deviation given in part (a) before it breaks.

This will be the value of $\sigma$

However, the company does not want to replace more than 6% of the refrigerators under guarantee. For how long should the guarantee be made?

We need to find the 100 - 6 = 94th percentile, which is X when Z has a pvalue of 0.94. So X when Z = 1.555. So

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

$1.555 = \frac{X - 14}{\sigma}$

$X = 1.555 + 14\sigma$

The guarantee should be made of $X = 1.555 + 14\sigma$ years, in which $\sigma$ is the standard deviation given in part (a).

7 0

3 years ago

The number of milligrams of a certain medicine a veterinarian gives to a dog varies directly with the weight of the dog if the v

sesenic [268]

Answer:

d= 1.50 mg/w

Step-by-step explanation:

30 pounds -> 3/5 mg

1 pound -> x

x= (1 pound * 3/5 mg)/30 pound

x= 1/50 mg/pound

6 0

4 years ago