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291

How To Solve this Problem Algebraically?

1. sqrt(x-3) + sqrt(5) = sqrt(2) + sqrt(x+2)

2. Simplify: 9th root of (121060821x^520b^47228) EXPLAIN your thought procedure/thought process

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Guest Dec 3, 2022

218

geometry

Triangle ABC is a right triangle with angle BAC= 90 degrees and angle B > angle . Suppose AP is an altitude of the triangle, AQ is an angle bisector of the triangle, and AR is a median of the triangle, and angle PAQ = 18 degrees. If P read more ..

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Guest Dec 3, 2022

230

是否存在m的值会使关于y的方程m(k- 3)y=2+(3a- m)y无解，若存在请求m的值，若不存在请说明理由.

是否存在m的值会使关于y的方程m（k- 3）y=2+（3a- m）y无解，若存在请求m的值，若不存在请说明理由.
The presence or absence of a value of m will make the equation m(k- 3)y=2+(3a- m)y unsolvable for y, and if there is a value of request m, please explain the reason if it does not exist. read more ..

Guest Dec 3, 2022

215

help math

For nonnnegative integers a and b, where a >= 2 and b >= 2, simplify
binom{a + b}{2} + binom{2a + b}{2} + binom{a + 2b}{2} - binom{a - b}{2}

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Guest Dec 3, 2022

184

Algebra question

Consider the two expressions (6x^3 + 9x^2 + 4x + 7 - 17x^2 - 8x + 8)/(2x + 3 - 7x - 11) and 4x^2 - 7 + 1/(2x + 3 - 7x - 11)
a) Show that the two expressions represent equal numbers when x = 10
b) Explain why these two expressions do not represent read more ..

Guest Dec 3, 2022

226

help plz

Fill in the blanks to make the equation true

\binom{n}{k} = \binom{n - 2}{k} + \binom{n - 2}{k - 1} + \binom{n - 1}{k} + \binom{n - 1}{k - 1} + \binom{n}{k - 1} + \binom{n}{k + 1}

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Guest Dec 3, 2022

238

acceleration question, im stuck

An object uniformly accelerates while traveling a distance of 45 meters. If the object's velocity changes from 3.4 m/s to 5.7m/s, how long does it take the object to travel the 45 meters distance?

It's not read more ..

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Guest Dec 3, 2022

276

algebra

Simplify binom{100}{50}/binom{200}{51}*binom{100}{51}/binom{200}{50}

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Guest Dec 3, 2022

241

+64

Pentagons (help needed)

The problem is in the image

Chandalier Dec 3, 2022

223

Function

For a certain function f(n), the identity
(2n)/n - (2n)/(n + 1) = f(n) (2n)/n
for all nonnegative integers n. Find f(n).

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Guest Dec 3, 2022

208

Pascal's triangle

The entries in a certain row of Pascal's triangle are
1, n, ..., n, 1

The average of the entries in this row is 2. Find n. read more ..

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Guest Dec 3, 2022

224

paths

Find the number of paths from P to Q, where each step is to the right or up.

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Guest Dec 3, 2022

186

help algebra

For a real number r, let s(r) denote the set of real numbers that can be expressed in the form
a1 r + a2 r^2 + a3 r^3 + ...
with an infinite number of terms, where ai in {0,1}
(a) Show that 1/2 an element in S(1/4)
(b) Show that 1/5 read more ..

Guest Dec 3, 2022

Dec 2, 2022

200

Fractions

Levans writes a positive fraction in which the numerator and denominator are integers, and the numerator is 1 greater than the denominator. He then writes several more fractions. To make each new fraction, he increases both the numerator and the denominator read more ..

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Guest Dec 2, 2022

220

Algebra problem

Arrange the following numbers in increasing order (smallest first, biggest last):

A = 2*1/2*4*1/6
B = 12*128 read more ..

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Guest Dec 2, 2022

231

geometry

In the diagram, four squares of side length $2$ are placed in the corners of a square of side length $6$. Each of the points $W$, $X$, $Y$, and $Z$ is a vertex of one of the small squares. Square $ABCD$ can be constructed with sides passing through $W$, read more ..

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Guest Dec 2, 2022

-1

219

help counting

In how many ways can the numbers 1 through 5 be entered once each into the five boxes below so that all the given inequalities are true?

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Guest Dec 2, 2022

230

need help

The grid below is made up of line segments, like the line segment in red.
There are a number of paths that go from A to B in the grid, where every step goes to the right or up. If we choose a line segment at random, then what is the expected number of read more ..

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Guest Dec 2, 2022

-1

236

If 1 = 0,852 and X = 0,148. What is X?

If 1 = 0,852 and X = 0,148. What is X?

I have been trying to answer this question for a project I'm currently working on.

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Guest Dec 2, 2022

216

Algebra

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 2, 2022

214

help counting

Six children are each offered a single scoop of any of 3 flavors of ice cream from the Combinatorial Creamery. In how many ways can each child choose a flavor for their scoop of ice cream so that each flavor of ice cream is selected by at least two children? read more ..

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Guest Dec 2, 2022

228

Algebra

A factory manufactures two types of gadgets: regular and premium.
Each gadget requires two stages, assembly, and finishing, and there are at most 120 hours available for each operation (that is, 120 hours for assembly, and 120 hours read more ..

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Guest Dec 2, 2022

213

help probability

Valeria has three coins, each of which has a probability of 1/2 of coming up heads. On her first turn, she flips all three coins. If all three come up heads, then she stops. Otherwise, for her second turn, she flips any coins that came up tails. read more ..

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Guest Dec 2, 2022

218

algebra

Fill in the blank to make the equation true.

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

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Guest Dec 2, 2022

222

help polygon

Let P be a regular nonagon with side length 2, and let S be the set of points that are within a distance of 1 from S. (That is, a point X is in S if there exists a point Y in P such that XY <= 1.) What is the perimeter of P? read more ..

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Guest Dec 2, 2022

All Questions ⁺⁰237737 Questions

How To Solve this Problem Algebraically?

geometry

是否存在m的值会使关于y的方程m(k- 3)y=2+(3a- m)y无解，若存在请求m的值，若不存在请说明理由.

help math

Algebra question

help plz

acceleration question, im stuck

algebra

Pentagons (help needed)

Function

Pascal's triangle

paths

help algebra

Fractions

Algebra problem

geometry

help counting

need help

If 1 = 0,852 and X = 0,148. What is X?

Algebra

help counting

Algebra

help probability

algebra

help polygon

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