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417

please help

https://web2.0calc.com/questions/geometry_49417

Guest May 23, 2020

492

Hello

Hello how are you guys?

off-topic

Guest May 23, 2020

420

Can Moderators see Offtopic?

The question is as the title suggest?

off-topic

Guest May 23, 2020

445

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

416

please help!

https://web2.0calc.com/questions/help_61757

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Guest May 23, 2020

579

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 read more ..

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Guest May 23, 2020

629

can you solve?

Solve |x + 2| - |x - 5| = 1.

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Guest May 23, 2020

587

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

425

please help

What is the graph of max(|x|,|y|) = 1 in the coordinate plane?

Guest May 23, 2020

564

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 read more ..

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Guest May 23, 2020

584

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

620

help!

Factor (2x + 1)(x - 3) + (2x + 1)(7x - 2).

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Guest May 23, 2020

962

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

593

help

Find the largest n such that n^2 divides 2000.

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Guest May 23, 2020

597

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

1221

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 read more ..

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Guest May 23, 2020

655

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

655

+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.

read more ..

auxiarc May 23, 2020

2064

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 read more ..

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Guest May 23, 2020

551

help

Find the vertex of the parabola y = 4x^2 - 6x + 15.

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Guest May 23, 2020

565

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

2241

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

432

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

643

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 read more ..

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Guest May 23, 2020

All Questions ⁺⁰237801 Questions

please help

Hello

Can Moderators see Offtopic?

algebra

please help!

PLEASE HELP!

can you solve?

help!

please help

help

help

help!

System of equations

help

trig

Help with probability

help please

Vectors

help

help

Factoring General Quadratics

How many $10$-digit numbers are there, such that the sum of the digits is divisible by $2$?

help

Plzz help I’m so stuck

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