All Questions

370

Triangle

In triangle JKL, we have JK = JL = 25 and KL = . Find the circumradius.

MaxWong ●

Guest Apr 17, 2022

332

Sum

What is the sum of all the odd integers between 500 and 900?

●

Guest Apr 17, 2022

346

Function

Given that f(3) = 5 and f(3x) = f(x) + 3 for all x, find f^{-1}(11).

MaxWong ●

Guest Apr 17, 2022

342

plz help asap

hi i need help plz

●

Guest Apr 17, 2022

352

Please Help with this combination method

Hi, suppose we want to arrange the letters "B,O,O,K", with replacement allowed (I.e. BBBB, OOOO etc..)

One method is as follows: (Four slots, each slot can be any of the four letters so 4*4*4*4 , and then divide by 2! read more ..

●●●

Guest Apr 17, 2022

371

Help... Im not sure how to do this!

Let X be a topological space and F a collection of closed subsets. Define G as the complements of sets in F. Then a union of sets in G is the complement of an intersection of the corresponding sets in F. So 2 F has FIP if and only if G has no finite subcover read more ..

●●●

Guest Apr 17, 2022

345

HELP

Max made his own coin. On one side, he colored it blue. On the other side, he colored it red. Let's assume his coin is fair. Each time he tosses it there is a 50/50 chance of either color. If he tosses his coin two times, what is the chance that both tosses read more ..

●

Guest Apr 17, 2022

376

Math

Smokey, Misty and Ian each have some buttons. Smokey and Misty have 59 buttons in total. Misty and Ian have 52 buttons in total. Smokey and Ian have 41 buttons in total. How many buttons do they each have?

●

Guest Apr 17, 2022

361

help me

Each month Terry earns some money. He spends $120 on food and $95 on transport. He spends 2/5 of the remaining money on a new suit. He has $780 left. How much money does Terry earn in a month?

●

Guest Apr 17, 2022

369

Math help on this

Holly gets some money for her birthday. She buys a pair of jeans, some shoes and a new coat. She spends 20% of her money on some jeans. The coat costs her $21 more than the shoes. The shoes cost $32. She is left with 3/8 of the money that she started read more ..

●

Guest Apr 17, 2022

354

help.

There is 10 socks in the laundry basket. 4 are black, and 6 are white. What is the probability of you picking a pair of you picking 2 white socks from the laundry basket?

●

Guest Apr 17, 2022

352

Hints?

Use the Euclidean algorithm to find integers and such that with the smallest possible positive value of . plz only hints

●

Guest Apr 17, 2022

Apr 16, 2022

363

Base numbers

What is the sum of all positive integers that have twice as many digits when written in base 2 as they have when written in base 4? Express your answer in base 10.

●

Guest Apr 16, 2022

347

helpp i dont know how to do this

We have a rectangle of dimensions x - 2 by 2x + 5 such that its area is 8x-6 . What is the value of x?

●

Guest Apr 16, 2022

331

Math problem

Pat has two sheets of large, square stamps. One sheet consists of 9 stamps arranged in a 3-by-3 square. (That's 3 stamps by 3 stamps, not 3 inches by 3 inches.) The other sheet consists of 100 stamps arranged in a 10-by-10 square. The stamps on each read more ..

●

Guest Apr 16, 2022

333

Algebra

Find a polynomial f(n) such that for all integers n>=1, we have

1*3 + 2*4 + 3*5 + ... + n*(n + 2) = f(n).
read more ..

●

Guest Apr 16, 2022

344

help sum

Find the closed form sum of 1*2*3 + 2*3*4 + 3*4*5 + ... + n(n + 1)(n + 2).

MaxWong ●

Guest Apr 16, 2022

393

If $a,b,c$ satisfy the system of equations \begin{align}b + c &= 12-3a \\ a+c &= -14 - 3b \\ a+b &= 7 - 3c, \end{align}

If satisfy the system of equations what is 2a+2b+2c?

CPhill ●●

Guest Apr 16, 2022

400

Please help, I would greatly appreciate it!!!

Please help!!!!!

●●●

Guest Apr 16, 2022

394

Sequences

In the sequence of numbers 3, 5, 2, ... each term after the first two is calculated as the term preceding it minus the term preceding that. So, for example, the third term is the second term minus the first term, i.e. 2 = 5 - 3. What is the sum of the first read more ..

geno3141 ●

Guest Apr 16, 2022

352

Coordinates

The image of the point with coordinates (1,1) under the reflection across the line y=mx+b is the point with coordinates Find m+b.

●

Guest Apr 16, 2022

383

Number Theory

When N is divided by 10, the remainder is a. When N is divided by 13, the remainder is b. If a = 5 and b = , what is N modulo 130?

●

Guest Apr 16, 2022

235

help pls

while solving an equation of the form ax^3+bx^2+cx+d = 0 (a, b, c, d E R) a student created the following graph of f(x) = ax3+bx2+cx+d.

Describe how the graph can be used to determine the number of solutions on the interval -5 <read more ..

Guest Apr 16, 2022

345

geometry

ABCD is a square. Find the area of triangle AMP.

●●●●

Guest Apr 16, 2022

All Questions ⁺⁰238158 Questions

Triangle

Sum

Function

plz help asap

Please Help with this combination method

Help... Im not sure how to do this!

HELP

Math

help me

Math help on this

help.

Hints?

Base numbers

helpp i dont know how to do this

Math problem

Algebra

help sum

If $a,b,c$ satisfy the system of equations \begin{align}b + c &= 12-3a \\ a+c &= -14 - 3b \\ a+b &= 7 - 3c, \end{align}

Please help, I would greatly appreciate it!!!

Sequences

Coordinates

Number Theory

help pls

geometry

10 Online Users

Top Users

Sticky Topics