2 years ago

How can you find the missing side length of a cube if you know the cube’s volume?

1 answer:

6 0

Volume = l*w*h so you would that the volume and dived it by one number that the product of that and then dived again buy the other number and you should have your answer

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a ladder needs to reach a second story window that is 13 ft above the ground and make an angle with the ground of 68°....

ollegr [7]

Answer: The answer would h=13Sin63deg

Step-by-step explanation:

Idrk, I just caculated it on paper-

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2 years ago

Henry has collected data to find that the typing speeds for the students in a typing class has a normal distribution. What is th

Mekhanik [1.2K]

Answer: 0.8413

Step-by-step explanation:

Given : Henry has collected data to find that the typing speeds for the students in a typing class has a normal distribution.

Mean : $\mu=47$

Standard deviation : $\sigma= 4$

Let x be the random variable that represents the typing speeds for the students.

The z-score :-

$z=\dfrac{x-\mu}{\sigma}$

For x= 51

$z=\dfrac{51-47}{4}=1$

Using the standard normal distribution table ,the probability that a randomly selected student has a typing speed of less than 51 words per minute :-

$P(x$