All Questions ⁺⁰237665 Questions

0

639

1

+614

please help

xxJenny1213xx May 31, 2020

0

775

1

help

Angie decided to use her class as a sample to predict the total number of students in her school wearing red on Valentine’s Day. She counted 11 students wearing red in her class of 24 students. Using this ratio, how many of the 480 students in her school read more ..

Guest May 31, 2020

0

537

1

Help!

For a positive integer n, let
read more ..

Guest May 31, 2020

0

636

4

+866

i've been stuck on this. I said what I did below:

Let f(x) = 3x^2 - 7 and g(f(4)) = 9. What is g(f(-4))?

So I figured out that f(4) and f(-4) both equal 41... but I'm not sure what to do in g(f(4)) = 9 since there's no variable...

AnimalMaster May 31, 2020

0

409

0

geometry

My teacher won't help me on this one:

In triangle ABC, D lies on AB so that AD:DB = 4:1, E lies on BC so that CE:EB = 4:1, and F lies on AC so that AF:FC = 3:11. Find the ratio of the area of triangle DEF to the area of triangle read more ..

Guest May 31, 2020

0

560

1

coordinates

Find the point that divides the segment from (-4,-3) to (5,3) in the ratio 5:3.

Guest May 31, 2020

-1

724

2

+866

help !

Given that , what is ? Express your answer as a common fraction.

AnimalMaster May 31, 2020

0

449

1

help

A radiator contains 20 liters of a mixture which is 40% antifreeze. You want to drain off and add an equal volume of antifreze to bring the percentage up to 60%. How many liters should you drain off?

Guest May 31, 2020

0

619

1

What is thiS.....?

Guest May 31, 2020

0

580

1

help

Find constants A and B such that (3x - 17)/((x - 3)(x - 7) = A/(x - 3) + B/(x - 7).

Guest May 31, 2020

0

719

5

can someone post an answer to this problem?

https://web2.0calc.com/questions/the-complete-graph-of-y-f-x-which-consists-of-five

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Guest May 31, 2020

0

558

2

please help!! thanks

Find a/b when .

Guest May 31, 2020

0

412

0

i had the same few questions to ask lol :)

I was about to post a few questions that I needed help on, when I found that somebody else had already posted these questions. Here's the original post: https://web2.0calc.com/questions/need-help-on-a-few-tough-geo-questions

PS read more ..

Guest May 31, 2020

-1

590

2

+866

help..

The circle 2x^2 = -2y^2 + 12x - 4y + 20 is inscribed inside a square which has a pair of sides parallel to the x-axis. What is the area of the square?

AnimalMaster May 31, 2020

0

617

1

help

in a class of 60 junior and senior students, 21 are girls and 34 are juniors and 20 are senior boys. How many juniors are girls?

Guest May 31, 2020

0

488

1

help

In a new Hostel containing 100 rooms. Simon was hired to paint the numbers 1 to 100 on the doors. How many times will Simon have to paint the number eight ?

Guest May 31, 2020

0

385

0

help

Two socks are drawn at random from a drawer containing 6 grey socks and 8 blue socks. What is the probability of getting a matching pair?

Guest May 31, 2020

0

652

1

probability

In a bag of three marbles, there are exactly two blue marbles. If Kia randomly chooses two marbles without replacement, the probability of choosing the two blue marbles is one-third. However, before Kia chooses her two marbles, additional marbles are added read more ..

Guest May 31, 2020

0

478

1

help

If r + 1/r = 2007 + 1/2007 and s + 1/s = 2006 + 1/2006, then find the largest possible value of r - s.

Guest May 31, 2020

0

624

2

help

Find all three-digit numbers that are equal to the sum of the cubes of the digits.

Guest May 31, 2020

0

602

2

help

All of the ID codes in Angelo’s school are three-digit positive integers. For Angelo’s ID code, the product of the digits is 216, the sum of the digits is 19, and the integer ID code is as large as possible. What is Angelo’s ID code?

Guest May 31, 2020

0

548

1

help

If a - b = 7 and ab = 60, then find sqrt(a^2 + b^2).

Guest May 31, 2020

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