All Questions

467

math

what is 31.6 of 77,000,000

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Guest May 23, 2021

558

+318

Math

Ryan's bag contains 5 times as many coins as Gavin's bag. If Ryan gives 18 coins to Gavin, the two boys will have the same number of coins. What is the total number of coins?

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Tgfromthe4 May 23, 2021

261

Probability

Two different 2-digit numbers are randomly chosen and multiplied together. What is the probability that the resulting product is a multiple of 10?

Guest May 23, 2021

346

Probability question

Two real numbers are chosen at random between 0 and 2. What is the probability that the sum of their squares is no more than 1? Express your answer as a common fraction in terms of pi.

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Guest May 23, 2021

474

+120

Math asap

Stainless steel forks and spoons of the same size and quality were on sale. Aminah paid $106.40 for 16 forks and 12 spoons. Hui Hui paid $60.20 for 10 forks and 6 spoons. Devi bought 5 forks and 5 spoons. How much did Devi pay for her items. read more ..

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florianmanteyw May 23, 2021

539

Please help me :)

If we continue making the spiral below until we reach 83 what number will appear directly to the left of 83?

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Guest May 23, 2021

496

+197

Math

A sandwich and 4 cheese buns cost $(w + 4).
A sandwich and 2 cheese buns cost $(w + 2).

Each cheese bun costs $_____. read more ..

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KINGCASH May 23, 2021

405

number theory

What is the sum of the smallest and second-smallest positive integers satisfying the congruence 27a = 40 (mod 43)?

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Guest May 23, 2021

574

+29

To stop cheating

I have an idea, as many people have come as guests to come and make people do their homework for them, I believe we should require everyone to log in to write questions. Although I have no authority, this is just a suggestion.

off-topic

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fuhsaha May 23, 2021

357

number theory

If x^3 is a positive factor of 10!*11!, how many possible integer values of x are there?

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Guest May 23, 2021

368

Domain

What is the smallest real number x in the domain of the function g(x) = sqrt(x^2 - (x - 15)^2)?

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Guest May 23, 2021

509

+166

Help (again)

Sorry for posting twice in sucession, I was going to add this question in the same post as my previous one, but somehow forgot. Also, if you aren't going to explain an answer, I won't learn and I might as well not have the answer anyway. (I'm looking at read more ..

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viola May 23, 2021

587

Let p(x) = x2, q(x) = 2x3 + 1, and r(x) = 7x4 − 5x3 − 6x − 2. Find p(q(x)) + r(x).

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Guest May 23, 2021

507

help please

A small publishing company is planning to publish a new book. The production costs will include one-time fixed costs (such as editing) and variable costs (such as printing). The one-time fixed costs will total 55,692. The variable costs will be 11.50 per read more ..

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Strayer1984 May 23, 2021

376

help asap pls

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

Thank you!

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Guest May 23, 2021

495

+166

help

A Senate committee has 5 Democrats and 5 Republicans. In how many ways can they sit around a circular table if each member sits next to two members of the other party? (Two seatings are the same if one is a rotation of the other.)

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viola May 23, 2021

324

Algebra

Let a, b, c, d, and e be positive integers. The sum of the four numbers on each of the five segments connecting "points" of the star is 28. What is the value of the sum a + b + c + d + e?

read more ..

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Guest May 23, 2021

281

domain

We define a function f(x) such that f(11) = 34, and if there exists an integer a such that f(a) = b, then f(b) is defined and f(b) = b - 1 if is odd, f(b) = b/2 if b is even. What is the smallest possible number of integers in the domain of f? read more ..

Guest May 23, 2021

361

Counting

The Grammar club has 20 members: 10 boys and 10 girls. A 4-person committee is chosen at random. What is the probability that the committee has at least 1 boy and at least 2 girls?

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Guest May 23, 2021

500

What is the word (asap)

C _ _ L E C _ _

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Guest May 23, 2021

336

confusion???

Solve the inequality $2x - 5 \le -x +12$. Give your answer as an interval.

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Guest May 23, 2021

269

URGENT FOR TEST

https://web2.0calc.com/questions/arc-length_4

Guest May 23, 2021

464

Probability

We flip a fair coin 10 times. What is the probability that we get heads in at least 5 of the 10 flips?

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Guest May 23, 2021

424

Probability

The digits from 1 to 6 are arranged to form a six-digit multiple of 5. What is the probability that the number is greater than 500,000 and even? Express your answer as a common fraction.

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Guest May 23, 2021

528

+137

How to find inverse of own function?

$f(x) =
\begin{cases}
k(x) &\text{if }x>3, \\
x^2-6x+12&\text{if }x\leq3.
\end{cases} <#> $

Find the function $k(x)$ such that $f$ is its own inverse. read more ..

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HighSchoolDx May 23, 2021

All Questions ⁺⁰237671 Questions

math

Math

Probability

Probability question

Math asap

Please help me :)

Math

number theory

To stop cheating

number theory

Domain

Help (again)

Let p(x) = x2, q(x) = 2x3 + 1, and r(x) = 7x4 − 5x3 − 6x − 2. Find p(q(x)) + r(x).

help please

help asap pls

help

Algebra

domain

Counting

What is the word (asap)

confusion???

URGENT FOR TEST

Probability

Probability

How to find inverse of own function?

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