All Questions

534

+130

help pls

When we expand (2x+1/2)^6, what is the coefficient on the x^4 term?

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mintjellyxd May 22, 2021

395

Counting

Andrew chooses a number from 1 to 100, and Mary also chooses a number from 1 to 100. (They may choose the same number.) It turns out that the product of their numbers is a multiple of 5. In how many ways could Andrew and Mary have chosen their numbers? read more ..

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Guest May 22, 2021

350

Counting

Each of the digits 1,2,3,4,5,6 is used exactly once in forming the 3-digit integers X and Y. How many possible values of X + Y are there if X - Y = 333.

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Guest May 22, 2021

356

system of equations

For what ordered pair (a, b) are there infinite solutions (x, y) to the system
4x+ay=-8,
12x+y=b

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Guest May 22, 2021

348

helP?

Two different circles and one straight line are drawn. What is the largest possible number of intersection points for this drawing?

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Guest May 22, 2021

361

counting

Ten people are sitting around a round table. Three of them are chosen at random to give a presentation. What is the probability that at least two of the three chosen people were sitting in consecutive seats?

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Guest May 22, 2021

507

+75

help

The combination locks on the lockers at Hillside School have numbers from 0 through 39 (inclusive). A locker combination consists of three different numbers, where the order matters. Because of the way the locks are manufactured, all three numbers are even read more ..

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szastan May 22, 2021

554

+75

A card is chosen at random from a standard deck of 52 cards. What is the probability that it is a King or black (or both)?

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szastan May 22, 2021

510

plz help asap

Of the kids in a chess club, are left-handed and are right-handed. The club holds a round-robin tournament in which every player plays against every other player exactly once.
What fraction of the games have two right-handed read more ..

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Guest May 22, 2021

549

+61

Please help!

Could someone please help? Idk if it's possible and can you please explain why or why not?

Melody ●

smonke May 22, 2021

592

+25

HeLP WitH ComPLeX NuMbErS PLeAsE UrGenT

Let z and w be complex numbers satisfying and . Enter in the numbers

below, in the order listed above. If any of these cannot be uniquely determined from the information given, enter in a question mark. read more ..

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Bruh20 May 22, 2021

526

+61

Pls help!

Could someone please help? Please show work or explain how you got it.

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smonke May 22, 2021

456

Algebra

Noah was asked to compute the product of two numbers. He misread the problem and entered the sum of the two numbers instead. Luckily he still got the right answer. One of the two numbers is 6. What is the other number?

Melody ●●

Guest May 22, 2021

450

Sequences

There is a sequence of numbers such that every entry except for the first entry is the arithmetic mean of its two neighboring entries. The 27th entry is 94 and the 94th entry is 46. What's the first entry?

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Guest May 22, 2021

374

Algebra

Find the set of values of k for which this equation has two real roots.
5x^2 + 4k*x + k = 3x + 2

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Guest May 22, 2021

563

Math

Peter and Blake had the same amount of money. After Peter spent $41 and Blake spent $51, Peter had 3 times as much money as Blake. How much money did each have at first?

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Guest May 22, 2021

-1

500

CPhill Pls Help (i need to pass the quiz to be in advance classes

Suppose that $\alpha$ is inversely proportional to $\beta$. If $\alpha = -3$ when $\beta = -6$, find $\alpha$ when $\beta = 8$. Express your answer as a fraction.

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Guest May 22, 2021

-1

497

+61

Please help

Sorry about the pencil marks, I tried working on this. Could someone please help?

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smonke May 22, 2021

450

Geometry

In concave equilateral pentagon ABCDE, angle A=angle B= 108 degrees. What is the degree measure of E?

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Guest May 22, 2021

362

Counting

A committee of 4 is to be chosen from a group of students. If the number of students in the group increases by 1, the number of different committees triples. How many students are in the group?

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Guest May 22, 2021

534

+61

Please help!

Could someone help please?

●●●

smonke May 22, 2021

525

Counting

Of all the four-digit positive integers containing only digits from the set {2,4,6,8} what fraction of them have at least one 8?

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Guest May 22, 2021

316

Counting

How many positive integers divide evenly into either 144 or 196 but not 72?

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Guest May 22, 2021

All Questions ⁺⁰237665 Questions

help pls

Counting

Counting

system of equations

helP?

counting

help

A card is chosen at random from a standard deck of 52 cards. What is the probability that it is a King or black (or both)?

plz help asap

Please help!

HeLP WitH ComPLeX NuMbErS PLeAsE UrGenT

Pls help!

Algebra

Sequences

Algebra

Math

CPhill Pls Help (i need to pass the quiz to be in advance classes

Please help

Geometry

Counting

Please help!

Counting

Counting

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