All Questions ⁺⁰237784 Questions

0

274

1

help algebra

Let a and b be real numbers such that a^3 + 3ab^2 = 679 and 3a^2 b + b^3 = -679. Find a+b.

Guest Jul 17, 2022

0

306

1

counting

I have 8 pieces of strawberry candy (all identical) and 7 pieces of rhubarb candy (all identical). Find the number of ways I can distribute this candy to 2 children.

Guest Jul 17, 2022

0

304

1

geometry

Two long strips of paper are each 2 inches wide, and they overlap so that the angle between the strips is 45°. What is the number of square inches in the area of the parallelogram formed by the overlap?

Guest Jul 17, 2022

0

233

0

Dice

Numbers from 1 to 10 are printed on a fair 10-sided dice. The dice is rolled 4 times. Let p be the probability that 3 prime numbers or 3 composite numbers are rolled consecutively. Find 10000p.

Guest Jul 17, 2022

0

306

1

probability

When Mandi shoots free throws, she consistently makes the shot with a probability of m/n<1/2, where m, n are relatively prime positive integers. When she shoots six free throws, the probability that she makes exactly half of them is 4^4/5^5. Find m + read more ..

Guest Jul 17, 2022

0

213

0

help

Among 6 products manufactured, 2 are defective. Each time we choose one product randomly without putting back to inspect. What is the probability that we find both defective products after 4 inspections?

Guest Jul 17, 2022

0

307

4

Help!

What is the slope of a line perpendicular to the line whose equation is $\frac{x}4-\frac{y}5=1$? Express your answer as a common fraction.

Guest Jul 17, 2022

0

340

1

Proportions Problem

In a rectangular coordinate system, the line $3y = x$ intersects the line $2x + 5y = 11$ at point $A$. What is the sum of the coordinates of point $A$? Please do a full walkthrough.

Guest Jul 17, 2022

0

289

1

sphere

A sphere is inscribed in a cube. What is the ratio of the surface area of the inscribed sphere to the surface area of the cube? Express your answer as a common fraction in terms of pi.

Guest Jul 17, 2022

0

193

0

sequence

The first term of a sequence is 13. Starting with the second term, each term is the sum of the cubes of the digits in the previous term. For example, the second term is Find the 6th term.

Guest Jul 17, 2022

0

263

1

number theory

What is the least positive integer divisible by each of the first ten positive integers

Guest Jul 17, 2022

0

248

2

derivatives

if a, b, c are the roots of the function 5x^3 - 11x^2 + 7x + 3, find a^2 + b^2 + c^2. (Find the derivative of the function)

Guest Jul 17, 2022

0

262

1

Polynomial

Simplify the following: (2y-1)(4y^{10}+2y^9+2y^8+y^7). Express your answer as a polynomial with the degrees of the terms in decreasing order.

Guest Jul 17, 2022

0

299

1

Graphing functions

Below is a portion of the graph of a function y = u(x)
What is the exact value of u(-2.72)+u(-0.81)+u(0.81)+u(2.72) ?

read more ..

Guest Jul 17, 2022

0

264

1

Help!!

In a rectangular coordinate system, the line $3y = x$ intersects the line $2x + 5y = 11$ at point $A$. What is the sum of the coordinates of point $A$?

Guest Jul 17, 2022

0

294

1

Sugondeez's nuts

One of Adi's old friends, Sugondeez, heard that Adi had given out nuts. He asks Adi if he can have half of Adi's nuts. The number of nuts Adi has is the solution to x/5+1=7.
Adi first eats four nuts, and then gives half to Sugondeez. Sugondeez eats read more ..

Guest Jul 17, 2022

0

259

2

Adi's nuts

Adi has 69 nuts. He shares them out to his three friends Ligma, Sugma, and Fugma. Ligma gets two more nuts than Sugma, Sugma gets two more nuts than Fugma, and Fugma has 10 nuts.

Adi puts three nuts in his mouth to eat read more ..

Guest Jul 17, 2022

0

204

0

Right triangles

Given right triangle ABC with altitude BD drawn to hypotenuse AC. If AC=20 and DC=7, what is the length of BC? (Note: the figure is not drawn to scale.)

Guest Jul 17, 2022

0

193

0

dice

A standard fair 6-sided dice is rolled 10 times. What is the probability that odd numbers do not come in a row among the result?

Guest Jul 17, 2022

0

286

2

marbles

A bag has 3 red and k white marbles, where k > 1 is a positive integer. Two of the marbles are chosen at random from the bag. Given that the probability that the two marbles are of the same color is 1/2, find k.

Guest Jul 17, 2022

0

222

0

graphing

Assume that f(3) = 4. Name a point that must be on the graph of y=f(-x)+4.

Guest Jul 17, 2022

1 Online Users