All Questions

402

Counting

Andrew chooses a number from 1 to 100, and Mary also chooses a number from 1 to 100. (They may choose the same number.) It turns out that the product of their numbers is a mutliple of 3. In how many ways could Andrew and Mary have chosen their numbers? read more ..

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Guest Jun 26, 2021

439

Sum

What is the sum of all the odd integers between 500 and 700?

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Guest Jun 26, 2021

266

Domain

If h(x) is a function whose domain is [-8, 8], and g(x) = h(2x^2), then the domain of g(x) is an interval of what width?

Guest Jun 26, 2021

411

help ratio

A bag contains yellow, green, blue, and white marbles in the ratio 4:2:3:8 . If the bag contains 18 green marbles, then how many blue marbles are there?

ElectricPavlov ●

Guest Jun 26, 2021

422

System

Find the ordered triple, (p,q,r)

p + 2q = 0
q - 2r = 0 read more ..

ElectricPavlov ●

Guest Jun 26, 2021

405

plz help

Given p/q = 5/6, q/r = 7/10, and r/s = 9/4, find

(p - q)/(q - r) and (2q - r)/(r + s)

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Guest Jun 26, 2021

406

Geometry help

Hi there! I'm back with another problem. I apologize-- my class is getting more difficult and my homework is piling up. It would be a huge favor if someone could help me with this problem:

Let $k$ be a positive real number. The line read more ..

TaliaArticula ●

Guest Jun 26, 2021

344

Analytic Geometry

Line 1 represents the graph of 3x + 4y = -14. Line 2 passes through the point (5,7), and is perpendicular to line 1. If line 2 represents the graph of y=mx +b, then find m+b.

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Guest Jun 26, 2021

433

Analytic geometry

The equation of the line that passes through the points (-2,0) and (0,8) can be expressed in the form y=mx+b. What is the value of m+b?

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Guest Jun 26, 2021

425

Analytic Geometry

The circle centered at (2,-1) and with radius 4 intersects the circle centered at (2,-5) and with radius sqrt(10) at two points A and B. Find (AB)^2

civonamzuk ●

Guest Jun 26, 2021

387

+58

Science

How To Check The Quality Of A Printed T-Shirt
Meta Description: The quality of a printed t-shirt is considered genuine when the best fabric is used and also depends on the printing method.
We all have favorite clothes and accessories such read more ..

swagmastercaillou Jun 26, 2021

410

plz help

Make a sketch of the region enclosed by the line : 2x + 5y = 10 and the positive coordinate axes. Draw a square that fits snugly into the triangular region, with one corner at the origin, the opposite corner on the line, and other two vertices on the read more ..

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Guest Jun 26, 2021

424

plz help

What is the equation of a parabola whose vertex is at the point (-2, 1), is the same size as the graph y = 2(x - 3)^2, and opens up?

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Guest Jun 26, 2021

-1

560

Tony and Alice are trying to reduce the amount of television they watch. For every hour they watch television, they have to put

Tony and Alice are trying to reduce the amount of television they watch. For every hour they watch television, they have to put
$3.50
into savings. The table shows how many hours of television Tony and Alice have watched in the read more ..

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Guest Jun 26, 2021

408

coordinates

Find the value of B-A if the graph of Ax + By = 3 passes through the point (-7,-2) and is parallel to the graph of x + 3y = -5.

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Guest Jun 26, 2021

411

Probability

Two distinct numbers are selected simultaneously and at random from the set (1, 2, 3, 4, 5, 6, 7). What is the probability that the smaller one divides the larger one? Express your answer as a common fraction.

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Guest Jun 26, 2021

456

Polynomials

We have that 3*f(x) + 4*g(x) = h(x) where f(x), g(x) and h(x) are all polynomials in x. If the degree of f(x) is 3 and the degree of h(x) is 5, then what is the minimum possible degree of g(x)?

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Guest Jun 26, 2021

359

help geometry

Rhombus ABCD has perimeter 148, and one of its diagonals has length 28. what is the area of ABCD?

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Guest Jun 26, 2021

-1

501

cphill heres a fun probem (i think)

Seven-digit telephone numbers are not allowed to begin with or .
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 read more ..

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Guest Jun 26, 2021

410

Inequality

Solve the inequality 2x - 5 <= x + 12. Give your answer as an interval.

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Guest Jun 26, 2021

498

help please

given that f{x} =2x-3, calculate the value of k when f{k} =-21

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Guest Jun 26, 2021

-1

1047

+55

Help Please!

A standard six-sided die is rolled $6$ times. You are told that among the rolls, there was one $1,$ two $2$'s, and three $3$'s. How many possible sequences of rolls could there have been? (For example, $3,2,3,1,3,2$ is one possible sequence.)
read more ..

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BigBoiChungus Jun 26, 2021

-1

551

+55

Melody or CPhil, Please Answer! (It would be great if anyone would answer actually XD)

I'm sorry for asking a question that has already been asked, but the last time this was posted, it did not get good answers. Please help me!:

It is a beautiful day at the beach and ten beach volleyball players have shown up at the read more ..

amygdaleon305 ●●

BigBoiChungus Jun 26, 2021

587

+526

Can someone help? (Complex numbers)

For positive integers n1 and n2 the value of expression , where is a real number iff
a) n1 = n2 + 1
b) n1 = n2 - 1
c) n1 = n2 read more ..

Alan ●●●●●●

amygdaleon305 Jun 26, 2021

445

+32

AA Similarity Postulate

Please Help! What did I do incorrect?
To solve part (b) I implemented the following steps:
read more ..

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mamabear81 Jun 26, 2021

All Questions ⁺⁰237665 Questions

Counting

Sum

Domain

help ratio

System

plz help

Geometry help

Analytic Geometry

Analytic geometry

Analytic Geometry

Science

plz help

plz help

Tony and Alice are trying to reduce the amount of television they watch. For every hour they watch television, they have to put

coordinates

Probability

Polynomials

help geometry

cphill heres a fun probem (i think)

Inequality

help please

Help Please!

Melody or CPhil, Please Answer! (It would be great if anyone would answer actually XD)

Can someone help? (Complex numbers)

AA Similarity Postulate

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