All Questions ⁺⁰237827 Questions

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165

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Counting

Need help quick

(a) Find the number of ways that Magnus can give out 20 identical stickers to 5 of his friends. (Not everyone has to get a sticker.)
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Guest Feb 13, 2023

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167

1

Counting

Help I use binomials

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

Guest Feb 13, 2023

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169

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Coefficient

Help plz help

Find the coefficient of u^2 v^9 in the expansion of (2u - 3v + u^2 - v^2)^9. read more ..

Guest Feb 13, 2023

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206

1

MATH

Select all numbers that are solutions to the inequality w < 0.

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Guest Feb 13, 2023

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173

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Parametric equations

The position of a particle is given by the parametric equations
x = 3 + 2 sin 2t - cos t
y = 4 + cos 4c + sin 3t
as t ranges over all real numbers. read more ..

Guest Feb 13, 2023

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191

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parametric equations

The position of a particle is given by the parametric equations
x = sqrt(t^2 + t)
y = t^2 - 1
as t ranges over all real numbers. read more ..

Guest Feb 13, 2023

0

209

1

Geometry

Help with angles on this

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 read more ..

Guest Feb 13, 2023

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181

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Counting

I don't know how

In a row of five squares, each square is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color, and at lest three of the squares are red. How many ways are there to read more ..

Guest Feb 13, 2023

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155

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Algebra

Plz help with system question

Find the ordered quintuplet (a,b,c,d,e) that satisfies the system of equations
a + 2b + 3c + 4d + 5e = 41 read more ..

Guest Feb 13, 2023

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189

1

Counting

At a meeting, five scientists, two mathematicians, five journalists, two biologists, and three politicians are to be seated around a circular table. How many different arrangements are possible if the scientists must all sit together (in read more ..

Guest Feb 13, 2023

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199

1

Math Quiz: Volumes of Cones 1.5.5

find the height of a cone with a diameter of 12 m whose volume is 340 m₃. Use 3.14 for π and round your answer to the nearest meter.

Please help me with the answer.

Guest Feb 13, 2023

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198

0

Parametric equations

Plz help with parametric equations

The position of a particle is given by the parametric equations
x = 1 + sin pi*t - cos pi*t read more ..

Guest Feb 13, 2023

0

175

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help math quiz

Use the given information to fill in the number of elements for each region in the Venn diagram.
n(A)=19,
n(B)=16
n(A∩B)=12, read more ..

Guest Feb 13, 2023

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179

0

what is 10001000 divided by 100000000000000pi

what is 1000*1000 divided by 100000000000000*pi

Guest Feb 13, 2023

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231

1

HELP ASAP!!

Let $a_1, a_2, a_3, \dots$ be a non-constant arithmetic sequence. (That is, not all the terms are the same.) Suppose that $a_4, a_7, a_{12}$ form a geometric sequence. If $a_7 = 30$, what is $a_1$?

Guest Feb 13, 2023

0

213

1

Counting

Help plz with counting

Find the number of ways of arranging the numbers 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 in a row so that the product of any two adjacent numbers is even or a mutliple of 3

Guest Feb 13, 2023

0

218

1

Counting

Can anyone help plz?

A debate team consists of 5 freshmen and 4 sophomores. (Everyone is distinguishable.) In how many ways can they stand in line, so at least two of the sophomores are standing next to each other, and read more ..

Guest Feb 13, 2023

Feb 12, 2023

+1

241

3

+132

I wanted to post my answer for this

I saw this post and wanted to post my answer to it. https://web2.0calc.com/questions/consider-a-particle-following-the-parametric-equations_2 I got: 1/6, 5/6, 13/6, and 17/6
Note that it can't be 7/6 or 11/6 because that would result in sin(\pi read more ..

Saphia1123 Feb 12, 2023

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201

1

Counting

Help how do I count this

Find the number of six-digit numbers, where the sum of the digits is divisible by 8. read more ..

Guest Feb 12, 2023

0

211

1

Geometry

I need help with triangles

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 = read more ..

Guest Feb 12, 2023

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