All Questions

434

help with triangle

Find AC such that AB= 5sqrt2 and angle b= 45 and angle a=15.

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Guest Jan 9, 2021

312

Need help please ASAP

A sequence is formed by adding 2 to the triple of the previous term. If the first term is 1, how many multiples of 6 less than 10,000 would be terms of the sequence?

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Guest Jan 9, 2021

256

help with polynomial

Find the number of terms when the expression (1 + x)^10*(1 - x)^10 is expanded completely.

Guest Jan 9, 2021

281

HELP PLSSSSS (due tommorrow)

A. Andy had a large collection of trading cards of famous soccer players. Many ofhis cards featured either Neymar (15%) or Mbappe (10%). However, Andy grewincreasing discontent with Neymar’s behavior (as a “diver”) and traded all of his Neymar cards for read more ..

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Guest Jan 9, 2021

319

men and women

How many ways can 4 men and 4 women sit in a row of 8 seats such that no two men sit together and no two women sit together?
Assume that all people are distinguishable. So if Fred and Ted switch places, it's a different formation.

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Guest Jan 9, 2021

272

floor function

What is the range of the function $f(x) = \lfloor 2x \rfloor - x$?
Express your answer in interval notation.

Guest Jan 9, 2021

392

Floor function

What is the probabily floor(x)+floor(y) is even? How do I do this without calculus?

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Guest Jan 9, 2021

297

triangle problem

A triangle has side lengths of 10, 24, and 26. Let a be the area of the circumcircle, and let b be the area of the triangle. Compute a - b in terms of pi.

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Guest Jan 9, 2021

508

+36

Please Help

Please help me

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Cloud Jan 9, 2021

293

Help Plz

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

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Guest Jan 9, 2021

342

Need Help Plz! Teacher Didn't Explain Directly and Inversely Proportion

The value of $y$ varies inversely as $\sqrt x$ and when $x=2$, $y=4$. What is $x$ when $y=1$?

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Guest Jan 9, 2021

Jan 8, 2021

274

Andy had a large collection of trading cards of famous soccer players. Many of his cards featured either Neymar (15%) or Mbappe (10%).

Andy had a large collection of trading cards of famous soccer players. Many of his cards featured either Neymar (15%) or Mbappe (10%). However, Andy grew increasing discontent with Neymar’s behavior (as a “diver”) and traded all of his Neymar cards for read more ..

Guest Jan 8, 2021

473

+86

A Question That I Need Help With**

Suppose the function f is defined by the following list of ordered pairs:
{(2,3);(4,−2);(5,−3);(6,2)}{(2,3);(4,−2);(5,−3);(6,2)} read more ..

JoLink Jan 8, 2021

287

quadratic polynomial

Find the quadratic polynomial f(x) such that f(0) = 3, f(1) = -5, and f(2) = 7.

Guest Jan 8, 2021

276

point on line

Find the point on the line -6x - 5y + 1 = 0 which is closest to the point (3,1).

Guest Jan 8, 2021

550

Help plz

At the AoPS office, mice vary inversely with cats, that is, $\text{mice}=\frac{k}{\text{cats}}$, for some value of $k$. When there are $3r-19$ cats, there are $2r+1$ mice, and when there are $6r-27$ mice, there are $r-5$ cats. Find $k$.

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Guest Jan 8, 2021

243

right triangle

Let triangle ABC be a right triangle, and let H be the point on side AB so that CH is perpendicular to AB.

If BC = 5 and AC = 12 and angle C = 90 degrees, then find CH.

Guest Jan 8, 2021

272

geometry

TP is a line that tangent to a circle centered at O. If PQ∥TO and ∠OTP=28∘, find the measure of ∠POQ in degrees.

read more ..

Guest Jan 8, 2021

334

Help is appreciated

Let $a,$ $b,$ $c,$ $d,$ and $e$ be the distinct roots of the equation $x^5 + 7x^4 - 2 = 0.$ Find \begin{align*} &\frac{a^4}{(a - b)(a - c)(a - d)(a - e)} + \frac{b^4}{(b - a)(b - c)(b - d)(b - e)} \\ &\quad + \frac{c^4}{(c - a)(c - b)(c - d)(c - read more ..

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Guest Jan 8, 2021

622

+1440

Please help with an Algebra 2 problem.

A basketball player shoots a free throw from the foul line. The equation of the path it will travel is h = -4.9t2 + 10t + 1.2 which gives the approximate height, h, of the basketball in meters after t seconds.

When does the ball read more ..

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SmartMathMan Jan 8, 2021

1067

+79

HELP!!!!

Rhombus $ABCD$ has perimeter $148$, and one of its diagonals has length $24$. How long is the other diagonal?

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Leafie Jan 8, 2021

272

math problem

A bag contains 3 balls labeled 2, 4 and 8. A ball is to be picked, the value on the label is to be recorded and then the ball is to be returned to the bag. This will be done three times and then the values will be multiplied together. What is the sum of read more ..

Guest Jan 8, 2021

804

The distance from the earth to the sun is 93,000,000 miles, and light travels at 186,000 miles per second. How many seconds does light from

The distance from the earth to the sun is 93,000,000 miles, and light travels at 186,000 miles per second. How many seconds does light from the sun take to reach the earth?

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Guest Jan 8, 2021

398

grid problem help

In this 10-by-10 square grid, initially 9 unit squares are shaded, as shown. Every minute, any unit square that shares at least two sides with shaded unit squares becomes shaded. When no more unit squares can become shaded, what is the number of unit squares read more ..

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Guest Jan 8, 2021

316

help

For the new year, Mr. He simply spent 9/4 times more on gifts than his budget predicted.
He spent 405 euros.
His wife, Mrs. Simple spent 8/5 times more on gifts than he had anticipated.
She spent 5 euros less than Mr. Simple.
a) what read more ..

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Guest Jan 8, 2021

All Questions ⁺⁰230999 Questions

help with triangle

Need help please ASAP

help with polynomial

HELP PLSSSSS (due tommorrow)

men and women

floor function

Floor function

triangle problem

Please Help

Help Plz

Need Help Plz! Teacher Didn't Explain Directly and Inversely Proportion

Andy had a large collection of trading cards of famous soccer players. Many of his cards featured either Neymar (15%) or Mbappe (10%).

A Question That I Need Help With**

quadratic polynomial

point on line

Help plz

right triangle

geometry

Help is appreciated

Please help with an Algebra 2 problem.

HELP!!!!

math problem

The distance from the earth to the sun is 93,000,000 miles, and light travels at 186,000 miles per second. How many seconds does light from

grid problem help

help

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