All Questions

270

help

Find all values of z such that z^4 - 4z^2 +4 = 0.

WhyamIdoingthis ●

Guest Apr 30, 2022

263

help

In right triangle $ABC$ with $\angle B = 90^\circ$, we have $\sin A = 2\cos A$. What is $\cos A$?

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Guest Apr 30, 2022

280

Integers

Given that a and b are positive integers and that a + b = 24 , what is the value of ab if 2ab + 10a = 3b + 257 ?

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Guest Apr 30, 2022

267

help with algebra

The sum of three numbers a, b, and c is 99. If we increase a by 6, decrease b by 6 and multiply c by , the three resulting numbers are equal. What is the value of b?

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Guest Apr 30, 2022

354

intermediate algebra

The sum of the first three terms of a geometric sequence is 54. The sum of the first six terms is 70. Find the common ratio. (All the terms are real numbers.)

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Guest Apr 30, 2022

173

quadratic

There are two pairs (x,y) of real numbers that satisfy the equation x+y = 3xy = . Given that the solutions x are in the form $x = \frac{a \pm b\sqrt{c}}{d}$ where a, b, c, and d are positive integers and the expression is completely read more ..

Guest Apr 30, 2022

482

+2407

HMMT November 2021 Problem 6 General Round

Hello,

Recently, I've been doing of past competitions to practice math and have stumbled upon this question.
read more ..

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catmg Apr 30, 2022

229

Intermediate Algebra

For what values of $x$ is $x^3-10x^2>-25x$?

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Guest Apr 30, 2022

274

Rationalizing denominator

Simplify: $\frac{1}{\sqrt{2}+\frac{1}{\sqrt{8}}}$

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Guest Apr 30, 2022

280

Integers

Find the ordered pair (m,n) where m, n are positive integers satisfying the following equation: 6mn = 27 + m - 2n.

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Guest Apr 30, 2022

302

help plz

Real numbers a and b satisfy the equations 3^a=81^{b+2} and 125^b=5^{a-3}*25^b. What is ab?

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Guest Apr 30, 2022

251

this one is quite hard.... functions question tsym

tsym for solving this it's hard for me!!
Let f(x)= and g(x)= for some real numbers a,h,k.
you know the following information about g:
the domain of g is x is greater than or = to 5,
the range of g is g(x) is less than read more ..

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Guest Apr 30, 2022

261

System

All triangles have the same value, and all circles have the same value. What is the sum of two circles?

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Guest Apr 30, 2022

Apr 29, 2022

263

Algebra

Find $\displaystyle{ \frac{2}{1 + 2\sqrt{3}} + \frac{5}{2 - \sqrt{3}}}$, and write your answer in the form $\displaystyle \frac{A + B\sqrt{3}}{C}$, with the fraction in lowest terms and $A > 0$. What is $A+B+C$?

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Guest Apr 29, 2022

268

help quadratic

Given that the absolute value of the difference of the two roots of ax^2 + 5x - 3 = 0 is , and a is positive, what is the value of a?

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Guest Apr 29, 2022

277

Right triangle

A right triangle has legs of length 6 and b, and a hypotenuse of length c. The perimeter of the triangle is . Compute c.

BuilderBoi ●

Guest Apr 29, 2022

268

function inverses/transformations question

Function f has an inverse. The graph of function f's inverse passes through (3,-6).
Define g(x)=2f(3x)-5. Function g also has an inverse.
What point must the graph of g's inverse pass through?

thanks so much! read more ..

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Guest Apr 29, 2022

234

Help me asap pls!!!

Alice made some muffins for sale. 3/11 of the muffins were chocolate muffins and the
rest were strawberry muffins. She sold 2/3 of the chocolate muffins and 42 strawberry
muffins. She then had the same number of chocolate muffins and strawberry read more ..

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Guest Apr 29, 2022

319

Help

We pour a quantity of water from a jug into an empty cup so that the water we pour into the cup is 1/6 of the volume left in the jug. If we put 50 more milliliters of water in the cup, then the water in the cup is 1/5 of the volume left in the pitcher. read more ..

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Guest Apr 29, 2022

307

+66

The centroid of is . Find

The centroid of is . Find read more ..

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qjin27 Apr 29, 2022

243

Pls help

How many 4-digit numbers have the second digit even and the fourth digit at least twice the second digit?

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Guest Apr 29, 2022

252

Given that (3,4) is a point on the graph of y=f(x), what point must be on the graph of -4f(-2x)+3?

Given that (3,4) is a point on the graph of y=f(x), what point must be on the graph of y=-4f(-2x)+3?
Thanks so much!

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Guest Apr 29, 2022

170

Number Theory

Find the remainder when 100^{1000} is divided by 7.

Guest Apr 29, 2022

158

stats question

Six numbers from a list of nine integers are 7, 8,12 ,15 ,19 , and 5. What is the largest possible value of the median of all nine numbers in this list?

Guest Apr 29, 2022

All Questions ⁺⁰236361 Questions

help

help

Integers

help with algebra

intermediate algebra

quadratic

HMMT November 2021 Problem 6 General Round

Intermediate Algebra

Rationalizing denominator

Integers

help plz

this one is quite hard.... functions question tsym

System

Algebra

help quadratic

Right triangle

function inverses/transformations question

Help me asap pls!!!

Help

The centroid of is . Find

Pls help

Given that (3,4) is a point on the graph of y=f(x), what point must be on the graph of -4f(-2x)+3?

Number Theory

stats question

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