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237665 Questions
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403
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please help
https://web2.0calc.com/questions/geometry_49417
Guest
May 23, 2020
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476
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Hello
Hello how are you guys?
off-topic
Guest
May 23, 2020
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406
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Can Moderators see Offtopic?
The question is as the title suggest?
off-topic
Guest
May 23, 2020
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425
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algebra
Let a, b, c be the roots of 2x^3 - 3x^2 + 5x - 7 = 0. Find a^2 + b^2 + c^2.
Guest
May 23, 2020
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400
1
please help!
https://web2.0calc.com/questions/help_61757
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Guest
May 23, 2020
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565
2
PLEASE HELP!
In the SuperLottery, three balls are drawn (at random) from ten white balls numbered from 1 to 10, and one SuperBall is drawn (at random) from ten red balls numbered from 11 to 20. When you buy a ticket, you choose three numbers from 1 to 10, and one number
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Guest
May 23, 2020
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606
1
can you solve?
Solve |x + 2| - |x - 5| = 1.
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Guest
May 23, 2020
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572
1
help!
The time is 9:00. On a 12-hour clock, how many minutes elapse before the hour hand and minute hand are 28 degrees apart for the first time?
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Guest
May 23, 2020
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410
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please help
What is the graph of max(|x|,|y|) = 1 in the coordinate plane?
Guest
May 23, 2020
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544
1
help
Tracy had a bag of candies, and none of the candies could be broken into pieces. She ate 1/3 of them and then gave 1/4 of what remained to her friend Rachel. Tracy and her mom then each ate 15 candies from what Tracy had left. Finally, Tracy’s brother took
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Guest
May 23, 2020
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565
1
help
a*b*c/(a + b + c) = 341 is satisfied by consecutive positive integers a, b, c. What is the smallest possible value of a?
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Guest
May 23, 2020
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599
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help!
Factor (2x + 1)(x - 3) + (2x + 1)(7x - 2).
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Guest
May 23, 2020
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953
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System of equations
What is x and y in the system of equations 3x + 2y = 170 and 4x + 6y = 360
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Guest
May 23, 2020
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570
1
help
Find the largest n such that n^2 divides 2000.
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Guest
May 23, 2020
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581
2
trig
Only two of the 5 numbers below are not equal in value. Which ones? (All functions are in degrees.)
tan 3, tan 30, tan 300, tan 3000, tan 30000
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Guest
May 23, 2020
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1206
2
Help with probability
Cody buys a soda that offers another soda free if he is lucky. The cap reads '1 in 6 wins!', meaning that each soda has a 1/6 probability of winning. Cody sees this and buys six of these sodas, thinking he is guaranteed a seventh. What is the true probability
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Guest
May 23, 2020
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642
1
help please
Jan is thinking of a positive integer. Her integer has exactly 16 positive factors, two of which are 12 and 15. What is Jan's number?
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Guest
May 23, 2020
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633
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+280
Vectors
A ship leaves port at noon and travels at a bearing of 214°. The ship’s average rate of speed is 15 miles per hour.
Describe the location of the ship at 2:30 p.m. by writing a vector in component form.
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auxiarc
May 23, 2020
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2061
1
help
The deli has four kinds of bread, six kinds of meat and five kinds of cheese. A sandwich consists of one type of bread, one type of meat and one type of cheese. Ham, chicken, cheddar cheese and white bread are each offered at the deli. If Al never orders
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Guest
May 23, 2020
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533
2
help
Find the vertex of the parabola y = 4x^2 - 6x + 15.
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Guest
May 23, 2020
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545
1
Factoring General Quadratics
The equation y=-6t^2+51t describes the height (in feet) of a projectile launched from the surface of Mars at 51 feet per second. In how many seconds will the projectile first reach 108 feet in height?
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Guest
May 23, 2020
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2227
1
How many $10$-digit numbers are there, such that the sum of the digits is divisible by $2$?
How many 10 -digit numbers are there, such that the sum of the digits is divisible by 2?
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Guest
May 23, 2020
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416
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help
What is the median of the distinct positive values of all the fractions less than or equal to 1 with positive integer denominators less than or equal to 5?
Guest
May 23, 2020
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622
2
Plzz help I’m so stuck
Marvin the fly starts at (0,0). Each step, Marvin moves one unit right or one unit up. He is trying to get to the point (5,7). However, at (4,3) there is a frog that will eat him if he goes through that point. In how many ways can Marvin
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Guest
May 23, 2020
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