All Questions

115

algebra problem

Let a and b be real numbers such that a + b = 4 and a^4 + b^4 = 16.
(a) Find all possible values of ab
(b) Find all possible values of a + b
(c) Find all possible values of a and b

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Guest Dec 4, 2022

107

factoring question

We are looking to factor 23x^2 + kx - 5 + x^2 - 3. Some values of k allow us to factor it as a product of linear binomials with integer coefficients. what are all such values of k?

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Guest Dec 4, 2022

138

plz help

Fill in the blank to make the equation true.

13*5*13*___*3 = 13*17

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Guest Dec 4, 2022

106

geometry

In triangle PQR, M is the midpoint of PQ. Let X be the point on QR such that PX bisects angle QPR, and let the perpendicular bisector of PQ intersect AX at Y. If PQ = 36, PR = 22, QR = 26, and MY = 8, then find the area read more ..

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Guest Dec 4, 2022

145

At a carnival, Amy bought

At a carnival, Amy bought
6
packs of
15 read more ..

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Guest Dec 4, 2022

counting problem

A certain club has 50 people, and 10 members are running for president. Each club member either votes for one of the 10 candidates, or can abstain from voting. How many different possible vote totals are there?

Guest Dec 4, 2022

Dec 3, 2022

127

+96

Algebra

A tennis player computed her “win ratio” by dividing the number of matches she has won by the total number of matches she has played. At the start of a weekend, her win ratio is exactly 0.500. During the weekend, she plays four matches, winning 3 and losing read more ..

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coolkidslovemath1982 Dec 3, 2022

105

If a > b > c > d, then which is larger, a + c or b + d? Can we tell from a > b > c > d which of a + d and b + c is larger?

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Guest Dec 3, 2022

170

+96

Algebra confusing

Back in elementary school, I learned a great magic trick to compare two positive fractions. Here’s my magic trick in action. Consider the fractions 5/19 and 6/23. I multiply the numerator of the first and the denominator of the second, and get 5 · 23 = read more ..

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coolkidslovemath1982 Dec 3, 2022

115

Find the savings after 3 years with an APR of 4% and monthly payments of 300.

Please help me with my homework 🥹

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Guest Dec 3, 2022

109

Angle bisectors

Let AB be a diameter of a circle, and let C be a point on the circle such that AC=8 and BC=14 The angle bisector of ACB intersects the circle at point M Find CM.

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Guest Dec 3, 2022

110

geometry

Let ABC be a triangle, and let its angle bisectors be AD, BE, and CF, which intersect at I. If DI = 3, BD = 4, and BI = 8, then find the area of triangle ABC.

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Guest Dec 3, 2022

117

help triangle

Triangle ABC has side lengths c = 29, a = 40, and b = 40. Find the inradius of triangle ABC. Find the circumradius of triangle ABC.

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Guest Dec 3, 2022

111

Algebra

Carissa the chessplayer is a very, very slow walker. In fact, she walks at 100 meters per hour when walking uphill, 180 meters per hour when walking across flat ground, and 250 meters per hour when walking downhill. One day, Carissa walks read more ..

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Guest Dec 3, 2022

112

Tangents

The two circles below are externally tangent. A common external tangent intersects line PQ at R. Find QR.

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Guest Dec 3, 2022

132

hard counting

a) Grogg is ordering pizza from a local pizzeria, which offers ten different toppings: pepperoni, mushrooms, sausage, onion, olives, green peppers, pineapple, spinach, garlic, and hummus (an favorite). For any pizza, any combination of read more ..

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Guest Dec 3, 2022

134

Please help. I tried like three ways but they don't work.

Dr. Jekyll has 180 mL of solution that is acid. How many mL of the solution must be replaced with pure acid in order to have a solution that is acid?54:

I was thinking that the ratio would be 36:144 for the 20% of acid and that the read more ..

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Guest Dec 3, 2022

115

Probability

The following cards are dealt to three people at random, so that everyone gets the same number of cards. What is the probability that everyone gets a red card?

[There are three red cards and three blue cards]

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Guest Dec 3, 2022

130

help probability

A bag contains five white balls and three black balls. Your goal is to draw two white balls.

(a) You simultaneously draw two balls at random. What is the probability that they are both white?
(b) You simultaneously draw two balls read more ..

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Guest Dec 3, 2022

-1

116

help plsn i5 might look like no latex but it has latex. Thank you!

Function is defined on positive integers as follows:

Final all such that C^3(n)=16

The thing is that I go to 2 of the answers. being 128, and 20 but i cant find the others. read more ..

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Guest Dec 3, 2022

127

help probability

In Ms. Q's deck of cards, every card is one of four colors (red, green, blue, and yellow), and is labeled with one of seven numbers (1, 2, 3, 4, 5, 6, and 7). Among all the cards of each color, there is exactly one card labeled with each number. The read more ..

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Guest Dec 3, 2022

114

counting

Find the number of positive integers that satisfy the following conditions:
* Each digit is a 1 or a 2 or a 3
* The sum of the digits is 10

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Guest Dec 3, 2022

factoring

We are looking to factor 23x^2 + kx - 5 + x^2 - 3. Some values of k allow us to factor it as a product of linear binomials with integer coefficients. what are all such values of k?

Guest Dec 3, 2022

110

algebra

A magician makes potions by combining maple syrup from a magical maple tree with ordinary water. The magician starts with a large supply of two potions: a red potion, which is 75% magical syrup by volume (and the rest is just water), and blue potion, which read more ..

Guest Dec 3, 2022

All Questions ⁺⁰230469 Questions

algebra problem

factoring question

plz help

geometry

At a carnival, Amy bought

counting problem

Algebra

If a > b > c > d, then which is larger, a + c or b + d? Can we tell from a > b > c > d which of a + d and b + c is larger?

Algebra confusing

Find the savings after 3 years with an APR of 4% and monthly payments of 300.

Angle bisectors

geometry

help triangle

Algebra

Tangents

hard counting

Please help. I tried like three ways but they don't work.

Probability

help probability

help plsn i5 might look like no latex but it has latex. Thank you!

help probability

counting

factoring

algebra

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