All Questions

3773

help

A school dance committee is to consist of 2 freshmen, 3 sophomores, 4 juniors, and 5 seniors. If 5 freshmen, 7 sophomores, 8 juniors, and 9 seniors are eligible to be on the committee, in how many ways can the committee be chosen?

●

Guest Feb 29, 2020

610

i need help!!!

There are 4 green gumballs, 6 red gumballs and 2 yellow gumballs in a gumball machine. If you randomly take two gumballs, what is the probability that you will get two of the same colored gumballs?

●

Guest Feb 29, 2020

1383

please help

A grocer has two kinds of candies: one sells for 90 cents per pound and the other sells for 40 cents per pound. How many pounds of each kind must he use to make 50 pounds he can sell for 85 cents per pound?

●

Guest Feb 29, 2020

757

+308

Thank you for taking the time to answer this problem.

The hypotenuse of a right triangle measures 6*sqrt{2} inches and one angle is 45 degrees. What is the number of square inches in the area of the triangle?

●

notsmart2.0 Feb 29, 2020

982

Word problem?

A total of about 180,000 terawatts of solar power reaches Earths surface, of which about 0.06% is used by plants for photosynthesis. Of the energy that goes to photosynthesis, about 1% ends up stored in plant matter.
a) Calculate read more ..

●●●●●●

DawmP Feb 29, 2020

890

pharmacist has an 18% alcohol solution and a 40% alcohol solution. How much of each should he mix together to make 10 liters of a 20% alcoho

pharmacist has an 18% alcohol solution and a 40% alcohol solution. How much of each should he mix together to make 10 liters of a 20% alcohol solution?

●

Guest Feb 29, 2020

624

help

Water fills a spherical tank of diameter 16 meters until the water is 4 meters deep at the lowest point in the tank. What is the diameter of the surface of the water?

●

Guest Feb 29, 2020

4399

A die is loaded in such a way that an even number is twice as likely to occur as an odd number.

A die is loaded in such a way that an even number is twice as likely to occur as an odd number. If E is the event that a number less than 4 occurs on a single toss of the die, find P(E).

●

Guest Feb 29, 2020

618

A sharpshooter can hit the target with a probability p=0.75.

A sharpshooter can hit the target with a probability p=0.75.
a) What is the probability that out of 10 shots she misses them all?
b) Find the probability that out of 10 shots she gets the target at least once.

●

Guest Feb 29, 2020

1710

help

A machine has 12 identical components which function independently. The probability that a component will fail is 0.2. The machine will stop working if more than three components fail. Find the probability that the machine will stop.

●

Guest Feb 29, 2020

597

hard probability

A professor gives students a pop quiz with 5 true or false questions. Eighty percent of the students are well-prepared for the pop quiz, but twenty percent are not. Students who are prepared have a 85% chance of answering each question correctly, but the read more ..

●

Guest Feb 29, 2020

994

please help

The length of a rectangle is 51 inches more than the width. The perimeter is 146 inches. Find the length and the width.

●●

Guest Feb 29, 2020

678

help

Triangle ABC is an equilateral triangle and O is the center of its inscribed circle. If the area of the circle is 4 sq cm, what is the area, in square centimeters, of triangle ABC? Express your answer in simplest radical form.

●

Guest Feb 29, 2020

Feb 28, 2020

450

probabilty

With six dice, each having six sides numbered 1 through 6 . What is the probability of each number from 6 through 36 when rolling all six dice at the same time together

●

Guest Feb 28, 2020

-3

892

+174

Help Please

1. There are six people sitting at a circular table. Each person is either tall or short. Let a be the number of people sitting next to at least one tall person, and let b be the number of people sitting next to at least one short person. How many read more ..

●●●

Forumofweb2.0cal Feb 28, 2020

420

Please Help Me

Ten circles are all the same size. Each pair of these circles overlap but no circle is exactly on top of another circle. What is the greatest possible total number of intersection points of these ten circles?

Guest Feb 28, 2020

828

help

A bag contains different colored candies. There are 50 candies in the bag, 28 are red, 10 are blue, 8 are green and 4 are yellow. What is the probability of choosing five pieces of candy and getting 3 blue and 2 green?

●

Guest Feb 28, 2020

-6

1422

+118724

Congratulations Chris.

Congratulations Chris.
You are Number 1 !
It is official

Help Please!!!

Old MacDonald has 5 chickens, 4 donkeys, and 7 emus. How many ways can he pair up the animals so that every pair consists of animals of different species? (The order of the animals within each pair does not matter, and the order among the pairs does not read more ..

●

SpongeBobRules24 Feb 28, 2020

+12

684

+1072

Help Please!!!

Given a grid, find the number of ways of placing 5 counters in the squares, so that each row and each column contains exactly one counter. One possible way is shown below.

read more ..

●

SpongeBobRules24 Feb 28, 2020

460

please help

Suppose there is a 17.5 % probability that a randomly selected person aged 35 years or older is a smoker. Inâ€‹ addition, there is a 25.5 % probability that a randomly selected person aged 35 years or older is female comma given that he or she smokes.
What read more ..

Guest Feb 28, 2020

478

hAlP aSaP

I have pieces of lemon-flavored candy and pieces of watermelon-flavored candy. In how many ways can I distribute this candy to four children?

I have $6$ pieces of candy that I want to distribute to $5$ children. read more ..

●

Guest Feb 28, 2020

1769

help

In a certain Algebra 2 class of 26 students, 16 of them play basketball and 9 of them play baseball. There are 5 students who play both sports. What is the probability that a student chosen randomly from the class plays basketball or baseball? read more ..

●

Guest Feb 28, 2020

526

Please help ASAP!

The function $f(n) = 3f(n-2) - 2f(n-1)$, where $f(2) = 3$ and $f(1) = -1$. What is the value of $f(5)$?

●

Guest Feb 28, 2020

All Questions ⁺⁰237665 Questions

help

i need help!!!

please help

Thank you for taking the time to answer this problem.

Word problem?

pharmacist has an 18% alcohol solution and a 40% alcohol solution. How much of each should he mix together to make 10 liters of a 20% alcoho

help

A die is loaded in such a way that an even number is twice as likely to occur as an odd number.

A sharpshooter can hit the target with a probability p=0.75.

help

hard probability

please help

help

probabilty

Help Please

Please Help Me

help

Congratulations Chris.

Help Please!!!

Help Please!!!

please help

hAlP aSaP

help

Please help ASAP!

2 Online Users

Top Users

Sticky Topics