All Questions

310

Algebra

Real numbers x and y satisfy
x + xy = 250y
x - xy = -240y
read more ..

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Guest Jan 31, 2022

174

Geometry

Points L and M lie on a circle centered at O, and the measure of arc LM on this circle is degrees. The circle passing through points O, L, and M is drawn. Find the measure of arc LPM on the larger circle, in degrees.
read more ..

Guest Jan 31, 2022

203

Which equation represents a direct variation?

Which equation represents a direct variation?
-2x = 3y
12x - 3 = 4y
5x - 2y + 3 = 0 read more ..

Guest Jan 31, 2022

239

Help Please

How many ways are there to put 4 distinguishable balls into 2 distinguishable boxes?

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Guest Jan 31, 2022

240

Number Theory

The letters A, B, C, D, E, and F represent digits and ABC,DEF represents a positive six-digit integer. What is the number ABC,DEF if 4(ABC,DEF) = 9(DEF,ABC)?

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Guest Jan 31, 2022

312

Complex Numbers

Express (30 + 19i)/(2 + 5i) in the form a + bi, where a and b are real numbers.

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Guest Jan 31, 2022

185

Coordinates

Three of the four vertices of a rectangle are (5,11), (6,11) and . What is the area of the intersection of this rectangular region and the region inside the graph of the equation (x - 5)^2 + (y + 2)^2 = 16? Express your answer as a common read more ..

Guest Jan 31, 2022

312

Coordinates

The line y= -12/5x + 2 is exactly 8 units away from two other lines parallel to it. The distance in units between the y-intercepts of these two other lines is?

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Guest Jan 31, 2022

284

Algebra

The roots of x^4 - 14x^3 + 57x^2 + ax + b = 0 form an arithmetic sequence. Find a + b.

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Guest Jan 31, 2022

247

Help Please

How many ways can you distribute 4 identical balls among 4 different boxes?

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Guest Jan 31, 2022

249

Help

I run a book club with people, not including myself. Every day, for days, I invite three members in the club to review a book. What is the smallest positive integer so that I can avoid ever having the exact same group of three members read more ..

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Guest Jan 31, 2022

275

What is the length of a longer side of a rectangle that has a perimeter of 64cm and an area of 192m cm?

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Guest Jan 31, 2022

229

Percent

A new train goes 20% farther than an older train in the same amount of time. During the time it takes the older train to go 300 miles, how many miles can the newer train complete?

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Guest Jan 31, 2022

305

Polynomial

Let f(x) = x^4-3x^2 + 2 and g(x) = 2x^6 - 6x^2 + 2x -1. Let a be a constant. What is the largest possible degree of f(x) + a*g(x)?

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Guest Jan 31, 2022

256

Polynomials

Let f(x) = x^3 + 3x ^2 + 4x - 7 and g(x) = -7x^4 + 5x^3 +x^2 - 7. What is the coefficient of x^2 in the sum f(x) + g(x)?

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Guest Jan 31, 2022

185

plz help

How many real numbers are not in the domain of the function

f(x) = 1/(x - 64) + 1/(x^2 - 64) + 1/(x^3 - 64) + 1/(x^4 - 64)

Guest Jan 31, 2022

344

Decimals

Find the fraction that equals 0.7766666666... (repeating 6's)

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Guest Jan 31, 2022

343

+91

I don't get how to start

I appreciate you coming to this post but I desperately need help on starting this

Every student in a class is asked about the number of cars their family owns. The results of the survey are shown in the histogram below, except read more ..

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cosign Jan 31, 2022

326

Algebra

If a is three times b, b is twice c, and c is four times d, what is the value of (a + c)/(b + d) ?

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Guest Jan 31, 2022

415

+1632

easy trig/precalc question help please

How many values of with satisfy ?

Thanks for any help given!

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proyaop Jan 31, 2022

395

+1632

hard bisector geometry help

In triangle , , , and the length of median is 4. Find .

Thank you :D

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proyaop Jan 31, 2022

246

Quadratic

One root of x^2 + 12x + k = 18x + 3 is twice the other root. Find k.

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Guest Jan 31, 2022

273

Algebra

For what values of a does the equation (a^2 + 2a)x^2 + (3a + 5)x+2 = 0 yield no real solutions x? Express your answer in interval notation.

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Guest Jan 31, 2022

301

Probability

Coco flips a penny, a nickel, and a quarter. Each coin is fair (meaning that heads and tails are equally likely to come up). What is the probability that at least two of the coins comes up heads?

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Guest Jan 31, 2022

All Questions ⁺⁰236348 Questions

Algebra

Geometry

Which equation represents a direct variation?

Help Please

Number Theory

Complex Numbers

Coordinates

Coordinates

Algebra

Help Please

Help

What is the length of a longer side of a rectangle that has a perimeter of 64cm and an area of 192m cm?

Percent

Polynomial

Polynomials

plz help

Decimals

I don't get how to start

Algebra

easy trig/precalc question help please

hard bisector geometry help

Quadratic

Algebra

Probability

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