All Questions

314

quadratic

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

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Guest May 14, 2022

267

Algebra

If a + b = 7 and a^3 + b^3 = 42, what is the value of the sum a^2 + b^2? Express your answer as a common fraction.

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Guest May 14, 2022

318

Proportion

If x and r are directly proportional and x=5 when r= , then what is x when r = ?

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Guest May 14, 2022

334

Math

Emily has saved 2/7 as much as Cindy. Then Cindy gives 1/7 of her money to Emily. Now Cindy has $30 more than Emily. How much did Emily have at first? What is the ratio of Emily's money to Cindy's?

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Guest May 14, 2022

305

casework

In American football, a touchdown scores 7 points, a field goal scores 3 points, and a safety scores 2 points. If a team scored a total of 24 points, how many combinations of plays is possible? The order of the plays does not matter, so touchdown and field read more ..

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Guest May 14, 2022

367

+17

Please help with this two-variable system!

For a certain value of the system:
has infinitely many solutions (a, b). What is ?

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ChocoSwirl May 14, 2022

321

Inequality

Find the set of all real numbers x so that x^2 <= 3.
Express your answer in interval notation.

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Guest May 14, 2022

May 13, 2022

340

Function

For a real number x, let
f(x) = x^2 if x <= -7
f(x) = |3x + 1| if -7 < x <= 1
f(x) = 3x - 8 if x > 1 read more ..

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Guest May 13, 2022

334

units digit of 3^2019 in base 16

Find the units digit of 3^2019 in base 16.

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Guest May 13, 2022

327

+13

pls haaaaalp

If , what is the value of ?

BuilderBoi ●●

JJkitty787 May 13, 2022

313

pls haaaaalp

If , what is the value of ?

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Guest May 13, 2022

330

Floor function

Let f(x) = x + floor(x).

(a) Find all x >= 0 such that f(x) = 1.
read more ..

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Guest May 13, 2022

322

help geometry

Five friends live on the same street. Their houses are at points A, B, C, D, and E, with the distances shown.

read more ..

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Guest May 13, 2022

330

geometry

AD and BE are altitudes of triangle ABC. If AC = 10, BC = 18, and AD = 5, then find BE.

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Guest May 13, 2022

836

+252

A stick has a length of $5$ units. The stick is then broken at two points, chosen at random. What is the probability that all three resultin

A stick has a length of $5$ units. The stick is then broken at two points, chosen at random. What is the probability that all three resulting pieces are shorter than $3$ units?

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Blizzardshine May 13, 2022

359

Probability

Fran randomly chooses a positive integers n, 1 <= n <= 100. Find the probability that is reducible.

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Guest May 13, 2022

261

Help Please!!!!

a=(-1,-4) and b=(3,2) Represent a⃗ −b⃗ using the head-to-tail method. Use the Vector tool to draw the vectors, complete the subtraction by the head-to-tail method, and draw a⃗ −b⃗

Guest May 13, 2022

337

Angles

What is the measure (in degrees) of the smallest interior angle of a triangle in which the exterior angle measures have the ratio ?

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Guest May 13, 2022

327

Polynomials

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

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Guest May 13, 2022

335

Floor function

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

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Guest May 13, 2022

328

Number Theory

As n ranges over the positive integers, what is the sum of all possible values of the greatest common divisor of 3n+4 and 7n+15?

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Guest May 13, 2022

345

Function

For some constants a and b let
f(x) = 8 - x if x <= 4
f(x) = ax + b if x > 4
The function f has the property that f(f(x)) = x for all x. What is a + b? read more ..

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Guest May 13, 2022

320

Geometry

Circle Gamma is the incircle ABC of and is also the circumcircle of XYZ. The point X is on BC, point Y is on AB, and the point is Z on AC. If angle A = 40, angle B = 80, and angle C = 60, what is the measure of angle AYX?

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Guest May 13, 2022

326

help

259 students went on a field trip eight buses were filled and 27 students traveled in cars how many students were in each bus

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Guest May 13, 2022

All Questions ⁺⁰237783 Questions

quadratic

Algebra

Proportion

Math

casework

Please help with this two-variable system!

Inequality

Function

units digit of 3^2019 in base 16

pls haaaaalp

pls haaaaalp

Floor function

help geometry

geometry

A stick has a length of $5$ units. The stick is then broken at two points, chosen at random. What is the probability that all three resultin

Probability

Help Please!!!!

Angles

Polynomials

Floor function

Number Theory

Function

Geometry

help

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