3 years ago

Help with simple graph question, please explain to me how you got the answer

1 answer:

3 0

It’s D because when you draw a line anywhere on any of the graphs, it should only hit a line once, so it can’t be A,B, and C

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The answer is 2:3 because it is 12:18 simplified.

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3 years ago

For a group of 100 people, compute(a) the expected number of days of the year that are birthdays of exactly 3 people.(b) the exp

Scilla [17]

Answer:

Step-by-step explanation:

Leaving leap years, a year contains 365 days.

For a group of 100 people, each person is independent of the other and probability of any day being his birthday has a chance of

$\frac{1}{365}$

a) Probability that exactly 3 people have same birthday = $\frac{1}{365^3}$

Each day is independent of the other

And hence no of days having exactly 3 persons birthday out of 100 persons is binomial with n = 365 and p = $\frac{1}{365^3}$

Expected value of days = np = $\frac{1}{365^2}$

b) Distinct birthdays is binomail with p =1/365 and n = 365

Hence

expected value = np =1

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4 years ago

-4^6•4^2/4^4<br><br> Simplify

elena-14-01-66 [18.8K]

Answer:

$-4^{4}$

Step-by-step explanation:

Reduce the expression -4^2×4^2

Calcualte the product and you get -4^4

If you want the alternative form is will be -256

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3 years ago

Kevin is 6 years older than Timothy. 4 years ago, Kevin was twice as old as Timothy. Find their present ages.

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Step-by-step explanation:

Hope it helps.

Handwriting is a bit poor. So, restraint is advised!

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3 years ago

Zorna weighs 92 pounds. Her weight is 6 pounds more than half of her father's weight. Which equation would help me find out how

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