All Questions

216

help algebra

If ax^3 + bx^2 + x - 6 has x + 2 has a factor and leaves a remainder 4 when divided by x - 1, find the values of a and b.

Guest Jul 4, 2021

355

probability

I have a special 6-sided dice such that
The probability of rolling a 2 is twice the probability of rolling a 1,
the probability of rolling a 3 is thrice the probability of rolling a 1,
the probability of rolling a 4 is quadruple the probability read more ..

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Guest Jul 4, 2021

385

Help, a repost, I’d prefer explanation more than answer

https://web2.0calc.com/questions/help-pls_85427

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Guest Jul 4, 2021

345

help pls idk what to do next

Seven-digit telephone numbers are not allowed to begin with 0 or 1
I can only remember a seven-digit telephone number if the first three digits (the "prefix") are equal to the next three digits or the last three digits. For example, I can remember read more ..

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Guest Jul 4, 2021

Jul 3, 2021

342

help trig

Find the area of the triangle whose two angles are 30 degrees and 45 degrees, and the side included between them has sqrt(3) + 1 length units.

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Guest Jul 3, 2021

394

+179

Inequalities are Hard

Let x, y, and z be real numbers such that and .

Find the maximum value of . read more ..

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EnchantedLava68 Jul 3, 2021

243

probability

Three balls are withdrawn (without replacement) from a bag containing 3 red, 4 green, and 5 blue balls and 6 yellow baalls.

(a) Find the probability that they are all the same color.
(b) Find the probability that they are read more ..

Guest Jul 3, 2021

426

help with geometry

Triangle ABC is isosceles with AB = BC. If AB = 20 and [ABC] = 240, then find the perimeter of triangle ABC.

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Guest Jul 3, 2021

331

plz help

Find the value of c such that the three points (5,5), (3,1), and (-6,c) lie on the same line.
Note: Three points are on the same line if the slope of the line through any two points is always the same.

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Guest Jul 3, 2021

414

help geometry

Two diagonals of a parallelogram have lengths 6 and 10. What is the largest possible length of the shortest side of the parallelogram?

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Guest Jul 3, 2021

403

Help number theory

Find the smallest positive multiple of 21 that has no digit smaller than 5.

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Guest Jul 3, 2021

400

Algebraic expressions

For what real values of a is the expression (a + 3)/(a^3 - a) undefined? List your answers in increasing order separated by commas.

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Guest Jul 3, 2021

411

Geometric sequence

Find the fifth term of the geometric sequence with first term 2 and second term 1/5.

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Guest Jul 3, 2021

488

+51

Help with some Algebra questions plz!

1. if x+y=10, and xy=16, what is x-y?

2. if , find x+1/y+1
read more ..

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CCeed Jul 3, 2021

449

+198

I need some help with this problem

The graph of is shown below. Find . (The distance between the grid lines is one unit.)

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icecreamlover Jul 3, 2021

448

help pls :)

How many positive 4-digit integers contain the digit grouping 73 at least once? For instance, 2738 and 7344 are two such integers to include, but 2378 and 5703 do not meet the restrictions.

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Guest Jul 3, 2021

409

HELP PLS!

ABC has ∠BCA = 2∠BAC. Side BC is extended through C to a point D so
that AC = CD. If AB = 3 and BC = 2, find AD.

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Guest Jul 3, 2021

438

Help pls

Let $p(x)$ be a monic polynomial of degree 6 such that $p(1) = 1,$ $p(2) = 2,$ $p(3) = 3,$ $p(4) = 4,$ $p(5) = 5,$ and $p(6) = 6.$ Find $p(7).$

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Guest Jul 3, 2021

397

Number Theory

Determine the smallest non-negative integer a that satisfies the congruences:

a = 2 (mod 3)
a = 4 (mod 5) read more ..

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Guest Jul 3, 2021

364

Math Homework Help.

8. Let ABC be a triangle and denote by A1, A2 the points on the rays opposite to
AB, AC, respectively, satisfying AA1 = AA2 = BC (i.e. A1 is on line AB with A
between A1 and B). Define points B1, B2, C1, C2 analogously. Prove that points
A1, A2, read more ..

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Guest Jul 3, 2021

386

HELP ME! Triangles

Let triangle ABC have centroid G. D lies on AB such that AD/BD=2/3, and E lieson AC such that AE/CE =4/5. Lines DG and EG intersect BC at points P and Q, respectively. Find PQ/BC.

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Guest Jul 3, 2021

222

help pls

Let $f(x) = \left\lfloor \frac{2 - x}{x + 5} \right\rfloor$. Evaluate f(1) + f(2) + f(3) + ... + f(999) + f(1000).

Guest Jul 3, 2021

250

geometry

How many sides would there be in a convex polygon if the sum of all but one of its interior angles is 4560 degrees?

Guest Jul 3, 2021

440

help math

Calculate sqrt(60x)*sqrt(12x)*sqrt(63x)*sqrt(42x). Express your answer in simplest radical form in terms of x. Note: When entering a square root with more than one character, you must use parentheses or brackets. For example, you should enter sqrt(14) as read more ..

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Guest Jul 3, 2021

All Questions ⁺⁰233058 Questions

help algebra

probability

Help, a repost, I’d prefer explanation more than answer

help pls idk what to do next

help trig

Inequalities are Hard

probability

help with geometry

plz help

help geometry

Help number theory

Algebraic expressions

Geometric sequence

Help with some Algebra questions plz!

I need some help with this problem

help pls :)

HELP PLS!

Help pls

Number Theory

Math Homework Help.

HELP ME! Triangles

help pls

geometry

help math

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