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Post New Question
All Questions
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234777 Questions
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952
1
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=
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Guest
Feb 1, 2020
0
402
1
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
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1381
9
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
0
2198
1
+5
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
0
738
1
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
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2099
1
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
0
687
1
+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.
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mathleteig
Feb 1, 2020
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389
0
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
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Guest
Feb 1, 2020
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606
1
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
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489
1
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
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Guest
Feb 1, 2020
Jan 31, 2020
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754
1
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
0
589
1
+8
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.
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myahhh
Jan 31, 2020
0
607
1
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
776
1
+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
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ramenmaster28
Jan 31, 2020
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440
1
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
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547
1
What are the solutions to the system of equations?
can someone please help me ASAP?
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Guest
Jan 31, 2020
0
442
1
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
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380
1
little help here?
Expand, collect like terms, then solve. 6(7-x)+x=46-x
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Guest
Jan 31, 2020
0
365
1
little help?
Expand, collect like terms, then solve. 36+x=6(7-x)+x
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Guest
Jan 31, 2020
0
640
3
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
0
379
0
math sucks
idk how to do this HELP
Guest
Jan 31, 2020
0
503
3
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
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Guest
Jan 31, 2020
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542
0
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.
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Guest
Jan 31, 2020
0
392
1
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
0
553
0
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
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Guest
Jan 31, 2020
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