All Questions ⁺⁰237644 Questions

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Fun Problem

Would anyone like to try this? :)

Let ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB. Prove that (x + h)^2*(y + h)^2 = (a + b)^4.
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sandwich Feb 7, 2023

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199

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Geometry

I'm hoping someone can help with this geometry problem. I keep trying, but not really getting anywhere.

In tetrahedron ABCO, angle AOB = angle AOC = angle BOC = 90^\circ. A cube is inscribed in the tetrahedron so that read more ..

sandwich Feb 7, 2023

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166

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minutes

how to write time? degree?

Guest Feb 7, 2023

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177

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Geometry

In triangle PQR, let M be the midpoint of QR, let N be the midpoint of PR, and let O be the intersection of QN and RM, as shown. If QN perp PR, QN = 12, and PR = 14, then find the area of triangle PQR.

Guest Feb 7, 2023

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170

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Counting

How to count the possibles

A coin is tossed 12 times. How many different sequences of tosses could there have been, if the number of heads was at least ?

Guest Feb 7, 2023

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155

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Counting

I need help here plz

Three adults and three children are to be seated at a circular table. In how many different ways can they be seated if each child must be next to at least one adult? (Two seatings are considered read more ..

Guest Feb 7, 2023

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224

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Counting

Plz help

A standard six-sided die is rolled 7 times. You are told that among the rolls, there was one 1, two 2's, and three 4's. How many possible sequences of rolls could there have been? (For example, 5, 1, 2, read more ..

Guest Feb 7, 2023

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169

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Help 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.

Guest Feb 7, 2023

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175

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Algebra

Find domain and range.

Find the domain and range of the function f(x) = 2(2 - 3x).

Guest Feb 7, 2023

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210

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please help - ratios and proportions

I drove in the beach at a rate of dollar40dollar miles per hour. If I had driven at a rate of dollar30dollar miles per hour instead, then I would have arrived dollar20dollar minutes later. How many miles did I drive?

Guest Feb 7, 2023

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166

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Equation

How do you solve this equation

Find all values of c such that 3*(2c + 1) = 28*(3*c) - 9. If you find more than one value of c, then list your values in increasing order, separated by commas.

Guest Feb 7, 2023

Feb 6, 2023

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172

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Sigma

Sigma with 13 above. (3n-1) n=1

Guest Feb 6, 2023

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156

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+5

I am terrible at math haha

The nth term of a sequence is represented by 2n^4−15/6n^4+17 .
What is the limit of the the nth term as n becomes increasingly large?

Options : read more ..

TizzyT Feb 6, 2023

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166

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uw bisects tuv n wuv=(7x+31) solve for x

uw bisects tuv n wuv=(7x+31) solve for x
whats the answer

Guest Feb 6, 2023

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171

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Position vs time graph

Construct a position-versus-time graph for the following set of data: (D1 = 0 m, T1 = 0 s), (D2 = 7 m, T2 = 3 s), (D3 = 14 m, T3 = 6 s), (D4 = 21 m, T4 = 9 s), and (D5 = 28 m, T5 = 12 s).

Guest Feb 6, 2023

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164

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Counting

Help I need to use combinations

I run a book club with n people, not including myself. Every day, for 100 days, I invite members in the club to review a book. What is the smallest positive integer n so that I can avoid ever having the read more ..

Guest Feb 6, 2023

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163

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Counting

Plz help with counting need this

In the olympic women's skating competition, the gold medal goes to first place, silver to second, and bronze to third. If there are skaters, including Americans, in how many ways can the medals read more ..

Guest Feb 6, 2023

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168

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Counting

Help how to count paths

Find the number of paths from A to I, if each step must be in a right-ward direction. (For example, one possible path is A C D E F G H I)

Guest Feb 6, 2023

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205

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Math

In basketball, the number of points you score is given by 3x + 2y + 1z3x+2y+1z3, x, plus, 2, y, plus, 1, z where xxx is three-pointers, yyy is two-pointers, and zzz is free throws (one-pointers).
What is the read more ..

mathmasterman Feb 6, 2023

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