All Questions ⁺⁰237827 Questions

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164

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Counting problem

When two standard 6-sided dice are rolled, there are 36 possible outcomes for the sum of the two rolls: one sum of 2, two sums of 3, and so on, up to one sum of 12.

Find all possible ways of numbering two 6-sided dice read more ..

Guest Feb 15, 2023

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175

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Statistics and Probabilities

There are 13 qualified applicants for 3 trainee positions in a fast-food management program. How many different groups of trainees can be selected?

Guest Feb 15, 2023

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160

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Algebra

Let a and b be real numbers such that a - b = 1 and a^3 - b^3 = 1
(a) Find all possible values of ab
(b) Find all possible values of a+b
(c) Find all possible values of a and b

Guest Feb 15, 2023

-1

212

1

+23

help

uwuoniichan Feb 15, 2023

0

156

0

Geometry

Help with parallelogram

In the diagram below, PQRS is a parallelogram with a perimeter of 26 and an area of 28. What is the perimeter of rectangle OSTQ? Include an explanation of how you solved the problem.
<read more ..

Guest Feb 15, 2023

0

171

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counting

Help with grid

Each unit square of the 4 x 4 grid below is to be filled in with the number 1, 2, 3 or 4 so that read more ..

Guest Feb 15, 2023

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162

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Algebra

If I give my brother 5 dollars, then we will have the same amount of money. If instead he gives me dollars, then I'll have twice as much money as he will have. How much money does my brother currently have (in dollars)?

Guest Feb 15, 2023

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172

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Counting

Miyu is giving out 9 identical chocolates to her 7 friends, including Dhruv. All possible distributions are equally likely. What is the probability that Dhruv gets exactly 2 chocolates?

Guest Feb 15, 2023

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158

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Factoring

Factor (ab + ac + bc)^3 - a^3*b^3.

Guest Feb 15, 2023

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163

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Probability

Need help with probability

My sock drawer contains two red socks, two white socks, and two blue socks. For three days in a row, I pull out two socks out of my sock drawer at random. What is the probability that I get matching read more ..

Guest Feb 15, 2023

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174

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-3x+(2+4x)

-3x+(2+4x)
write in standard form

Guest Feb 15, 2023

Feb 14, 2023

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188

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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 ..

Guest Feb 14, 2023

0

153

0

Absolute value

Find all solultions of the equation |x^2 - 30x - 1| + |x^2 - 30x + 1| = 30.

Guest Feb 14, 2023

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166

0

Factoring

Factor (b - c)*(x - a)^3 + (c - a)*(x - b)^3

Guest Feb 14, 2023

0

232

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 14, 2023

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262

1

Expected value

I need help

The grid below is made up of line segments, like the line segment in red.
read more ..

Guest Feb 14, 2023

0

186

1

Counting

Help with this plz

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

Guest Feb 14, 2023

0

191

2

A textbook has pages. How many of the pages have page numbers whose digits add up to exactly ?

A textbook has pages. How many of the pages have page numbers whose digits add up to exactly ?

Guest Feb 14, 2023

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164

0

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 ..

Guest Feb 14, 2023

0

193

0

+17

compounding - due in a few hours

help. last question .

Wigsnatcherx Feb 14, 2023

0

192

0

+17

compounding - due in a few hours

Pls help me asap

Wigsnatcherx Feb 14, 2023

-1

153

0

+17

compounding- due in a few hours

pls help me asap

Wigsnatcherx Feb 14, 2023

0

176

0

Expected value

In a series of coin flips, a run is a series of consecutive coin flips that are all the same. For example, in the sequence
the red letters form a run.
If a fair coin is flipped two times, what is the expected length of the longest run? read more ..

Guest Feb 14, 2023

0

199

2

+17

Compounding - due in 1 day (10 hrs)

help me pls asap

Wigsnatcherx Feb 14, 2023

0

164

0

Probability

I need the answer to this

Right triangle XYZ has legs of length XY = 12 and YZ = 6. Point D is chosen at random within the triangle XYZ. What is the probability that the area of triangle XYD is at most 20?

Guest Feb 14, 2023

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