All Questions

706

Theos phone cases

Theo just got a new phone case and the other ones are old . The only ones that he likes were only 3. He had two times more than Callie did. Callie has 14. How many phone cases does Theo have?

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Guest Dec 30, 2016

1011

Two questions on complex numbers. If both 2 and (- I + i (3^.5)), respectively, are cube roots of 8, does that mean the latter expression = 2? Second

Two questions on complex numbers. If both 2 and (- I + i (3^.5)), respectively, are cube roots of 8, does that mean the latter expression = 2? Second question, in the book the Mathematical Universe by W. Dunham, on page 292 he says 'It is easy to see that read more ..

Melody ●●●●●

Guest Dec 30, 2016

+11

4448

+561

Suppose we flip four coins simultaneously: a penny, a nickel, a dime, and a quarter. What is the probability that at least 15 cents worth of coins come up

Suppose we flip four coins simultaneously: a penny, a nickel, a dime, and a quarter. What is the probability that at least 15 cents worth of coins come up heads?

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arnolde1234 Dec 30, 2016

+11

2073

+561

The Boston weatherman says there is a 75 percent chance of rain every day of the Labor Day four-day weekend. If it doesn't rain, then the weather will be

The Boston weatherman says there is a 75 percent chance of rain every day of the Labor Day four-day weekend. If it doesn't rain, then the weather will be sunny. Paul and Yuri want it to be sunny one of those days for a World War III preenactment, but if read more ..

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arnolde1234 Dec 30, 2016

+10

1513

+561

There are seven wombats in a council. Three of them are hairy-nosed wombats, while the rest are all different species. If the hairy-nosed wombats are

There are seven wombats in a council. Three of them are hairy-nosed wombats, while the rest are all different species. If the hairy-nosed wombats are indistinguishable but the other wombats are, how many ways can the wombats seat themselves in a row? read more ..

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arnolde1234 Dec 30, 2016

+10

3094

+561

Two dice are tossed. What is the probability that the sum is greater than three?

NinjaAnswer ●

arnolde1234 Dec 30, 2016

+12

4057

+561

A card is chosen at random from a standard deck of 52 cards, and then it is replaced and another card is chosen. What is the probability that at least one of

A card is chosen at random from a standard deck of 52 cards, and then it is replaced and another card is chosen. What is the probability that at least one of the cards is a diamond or an ace?

NinjaAnswer ●

arnolde1234 Dec 30, 2016

+10

2544

+561

Our water polo team has 15 members. I want to choose a starting team consisting of 7 players, one of whom will be the goalie (the other six positions are

Our water polo team has 15 members. I want to choose a starting team consisting of 7 players, one of whom will be the goalie (the other six positions are interchangeable, so the order in which they are chosen doesn't matter). In how many ways can I choose read more ..

NinjaAnswer ●●

arnolde1234 Dec 30, 2016

642

Easy Question

3/2x=3 x=?

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Guest Dec 30, 2016

+10

3034

+561

The Screamers are coached by Coach Yellsalot. The Screamers have 12 players, but two of them, Bob and Yogi, refuse to play together. How many starting lineups

The Screamers are coached by Coach Yellsalot. The Screamers have 12 players, but two of them, Bob and Yogi, refuse to play together. How many starting lineups (of 5 players) can Coach Yellsalot make, if the starting lineup can't contain both Bob and Yogi? read more ..

ElectricPavlov ●●●●●

arnolde1234 Dec 30, 2016

840

statistics

In the first series of rolls of a die, the number of odd numbers exceeded the number of even numbers by 5. In the second series of rolls of the same die, the number of odd numbers exceeded the number of even numbers by 11. Determine which series is closer read more ..

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Guest Dec 30, 2016

666

Evaluating angles in dms

how do u evaluate an angle in DMS?

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Guest Dec 30, 2016

1567

statistics

The distribution of B.A. degrees conferred by a local college is listed below, by major.
Major Frequency
English read more ..

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Guest Dec 30, 2016

836

249 - 40%

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Guest Dec 30, 2016

500

statistics

The distribution of B.A. degrees conferred by a local college is listed below, by major.
Major Frequency
English read more ..

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Guest Dec 30, 2016

693

2+3=

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Guest Dec 30, 2016

910

Calculating pH

When calculating pH, and H+ = 1.4 * 10^-5, how do you end up with a pH of 4.85?

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Guest Dec 30, 2016

1331

+9678

Integral of sqrt(tan x) Please check the answer for me......

Today our 'gifted maths' class teacher gave us a hard integration problem: . Below is my solution to the question. Someone please check the answer for me? :)

read more ..

ElectricPavlov ●●●●●●●●●●●

MaxWong Dec 30, 2016

607

Dog gone!!

A dog is at the centre of a circular pond 200 m in diameter and a duck is swimming around the outer edge of the pond. The dog starts towards the duck swimming at the same speed as the duck. If the dog continually keeps in line with the centre of the pond read more ..

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Guest Dec 30, 2016

4054

If two events are mutually exclusive, why is P(A and B) =0?

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Guest Dec 30, 2016

815

Statistics and probability

The data set represent the income levels of the members of a country club. Estimate the probability that a randomly selected member earns at least 98000. 112 000, 126 000, 90 000, 133 000, 94 000, 112 000, 98 000, 82 000, 147 000, 182 000, 86 000, 105 000, read more ..

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Earth Dec 30, 2016

839

جد المشتقة الثانية اذا علمت ان جذر اكس - جذر واي = 1

MaxWong ●●●●●

Guest Dec 30, 2016

All Questions ⁺⁰238403 Questions

Theos phone cases

Two questions on complex numbers. If both 2 and (- I + i (3^.5)), respectively, are cube roots of 8, does that mean the latter expression = 2? Second

Suppose we flip four coins simultaneously: a penny, a nickel, a dime, and a quarter. What is the probability that at least 15 cents worth of coins come up

The Boston weatherman says there is a 75 percent chance of rain every day of the Labor Day four-day weekend. If it doesn't rain, then the weather will be

There are seven wombats in a council. Three of them are hairy-nosed wombats, while the rest are all different species. If the hairy-nosed wombats are

Two dice are tossed. What is the probability that the sum is greater than three?

A card is chosen at random from a standard deck of 52 cards, and then it is replaced and another card is chosen. What is the probability that at least one of

Our water polo team has 15 members. I want to choose a starting team consisting of 7 players, one of whom will be the goalie (the other six positions are

Easy Question

The Screamers are coached by Coach Yellsalot. The Screamers have 12 players, but two of them, Bob and Yogi, refuse to play together. How many starting lineups

statistics

Evaluating angles in dms

statistics

249 - 40%

statistics

2+3=

Calculating pH

Integral of sqrt(tan x) Please check the answer for me......

Dog gone!!

If two events are mutually exclusive, why is P(A and B) =0?

Statistics and probability

جد المشتقة الثانية اذا علمت ان جذر اكس - جذر واي = 1

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