All Questions

1009

Right ABC has its right angle at C, BC=4 , and AC=8 .

Right △ABC has its right angle at C, BC=4 , and AC=8 .
What is the value of the trigonometric ratio?

sin A= read more ..

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Guest Feb 1, 2020

460

help

The height of an isosceles trapezoid is 6 and the bases are 4 and 20. Find the measures of the angles.

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Guest Feb 1, 2020

1411

Help please! Multiples/probability

Billy and Bobbi each selected a positive integer less than 200. Billy's number is a multiple of 18, and Bobbi's number is a multiple of 24. What is the probability that they selected the same number? Express your answer as a common fraction.

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Guest Feb 1, 2020

2248

In right ABC , the right angle is at C, m∠A=30∘ , and AC=5√ 5 units.

In right △ABC , the right angle is at C, m∠A=30∘ , and AC=5√ 5 units.
What is the perimeter of △ABC ?

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Bmathhelp Feb 1, 2020

794

help

Ericka's book is 675 pages long and she has read 375 pages so far. If Ericka reads 80 pages per day. How many more days will it take her to finish the book

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Guest Feb 1, 2020

2111

help please

A cube is painted so that one side is blue, two sides are red, and three sides are green. How many different such cubes can be painted? Two cubes are considered the same if one cube can be rotated in any way to match the second cube.

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Guest Feb 1, 2020

750

+312

MATHCOUNTS

One hundred posts numbered 1 through 100 are placed in order in a a line with equal spaces between adjacent posts. Of Jim started at post 1 and is currently at post 25, what fraction of the way is he to post 100? Express your answer as a common fraction. read more ..

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mathleteig Feb 1, 2020

447

help

I built a storage shed in the shape of a rectangular box on a square base. The material that I used for the base cost $4 per square foot, the material for the roof cost $2 per square foot, and the material for the sides costs $2.50 per square foot; and read more ..

Guest Feb 1, 2020

668

2) Express as a single trigonometric function: Show all Work

2) Express as a single trigonometric function:

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Guest Feb 1, 2020

555

Algebra 2 help needed fast please

Question: Express 15-20i/1-2i in a+bi form.

I tried multiplying both sides by 1 + 2i, and got ((15-20i)(1+2i))/5
read more ..

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Guest Feb 1, 2020

Jan 31, 2020

822

help

A rhombus ha a perimeter of 80 meters and the length of one diagonal is 24 meters.find the area of the rhombus

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Guest Jan 31, 2020

654

Math

A truck can be rented from Company A for $40 a day plus $0.70 per mile. Company B charges $20 a day plus $0.90 per mile to rent the same truck. Find the number of miles in a day at which the rental costs for Company A and Company B are the same. read more ..

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myahhh Jan 31, 2020

666

help

A pair of dice is rolled until a sum of either 6 or 9 appears. Find the probability that a sum of 6occurs first.

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Guest Jan 31, 2020

+13

831

+232

very tricky and challenging question.. are you up for the challenge?

A bag contains five white balls and five black balls. Your goal is to draw two black balls.
You draw two balls at random. Once you have drawn two balls, you put back any white balls, and redraw so that you again have two drawn balls. What is the probability read more ..

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ramenmaster28 Jan 31, 2020

505

work

The delivery person weighs 172 pounds. There are 50 packages, and each package weighs 36 pounds. What does it mean mathematically that the maximum weight for one trip in the elevator is 1,200 pounds?

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Guest Jan 31, 2020

603

What are the solutions to the system of equations?

can someone please help me ASAP?

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Guest Jan 31, 2020

496

help please

Of 120 hotel rooms rented one night, some were suites rented for $115 each and the rest were double rooms rented for $85 each. If the total revenue from the room rentals for this night was $10,890, how many suites were rented?

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Guest Jan 31, 2020

442

little help here?

Expand, collect like terms, then solve. 6(7-x)+x=46-x

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Guest Jan 31, 2020

418

little help?

Expand, collect like terms, then solve. 36+x=6(7-x)+x

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Guest Jan 31, 2020

699

help

The sum of four consecutive terms of an arithmetic progression is 32 and the ratio of product of the first and the last term to the product of two middle terms is 7:15. Find the numbers.

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Guest Jan 31, 2020

432

math sucks

idk how to do this HELP

Guest Jan 31, 2020

564

Help

For each positive integer , the set of integers is known as the Within the residue system modulo , let be the sum of all invertible integers modulo and let be the sum all of non-invertible integers modulo . What is read more ..

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Guest Jan 31, 2020

598

The lateral area of a right cylinder which has a base diameter of 12 cm and a height of 8 cm is:

48 cm squared.
192 cm squared.
275 cm squared.
301 cm squared. read more ..

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Guest Jan 31, 2020

445

help

The Purdue basketball team scored 72 points in their last win over IU. Free throws and regular baskets made up 54 of the points. The rest of the points came from 3-points shots. How many three point shots were made ?

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Guest Jan 31, 2020

617

help

A machine produces defective parts with three different probabilities depending on its state of repair. If the machine is in good working order, it produces defective parts with probability 0.02. If it is wearing down, it produces defective parts with probaly read more ..

Guest Jan 31, 2020

All Questions ⁺⁰237665 Questions

Right ABC has its right angle at C, BC=4 , and AC=8 .

help

Help please! Multiples/probability

In right ABC , the right angle is at C, m∠A=30∘ , and AC=5√ 5 units.

help

help please

MATHCOUNTS

help

2) Express as a single trigonometric function: Show all Work

Algebra 2 help needed fast please

help

Math

help

very tricky and challenging question.. are you up for the challenge?

work

What are the solutions to the system of equations?

help please

little help here?

little help?

help

math sucks

Help

The lateral area of a right cylinder which has a base diameter of 12 cm and a height of 8 cm is:

help

help

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