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575

help

There are 50 students in our class. (1) What is the probability that Jack and Mike have the same birthday? (2) What is the probability that no one has the same birthday as the professor? (3) What is the probability that there are two and only two having read more ..

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Guest Feb 28, 2020

1805

Please help!

The graph of a cosine function shows a reflection over the x-axis, an amplitude of 3, a period of 2, and a phase shift of 0.25 to the right. Which is the equation of the function described?
f(x)=−3cos(πx−1/4)
f(x)=−3cos(πx−π/4)
f(x)=−3cos(πx−1/2) read more ..

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Guest Feb 28, 2020

320

HELP ASAP

3. A prop for the theater club’s play is constructed as a cone topped with a half-sphere. What is the volume of the prop? Round your answer to the nearest tenth of a cubic inch. Use 3.14 to approximate pi. radius=5in height=17in Help pls read more ..

off-topic

Guest Feb 28, 2020

369

Having a bit of trouble with a HW problem, could somebody help me out?

The line intersects the circle at and . Find the length of chord .

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Guest Feb 28, 2020

482

bit of a depressing post

I'm just looking through the archives, and I've got a few questions that nobody knows the answer to lol.
1) (this one is probably obvious) Why are there so many people, i. e. rosala that aren't on the "Top Users" leaderboard, despite having more read more ..

off-topic

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Guest Feb 28, 2020

2264

Alexa has set up a lemonade stand outside her house

Alexa has set up a lemonade stand outside her house and sells small cups and large cups of lemonade. Each small cups holds 8 ounces of lemonade and each large cup hold 16 ounces of lemonade. Alexa used 320 ounces of lemonade and sold twice as many small read more ..

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Guest Feb 28, 2020

963

help

Two teams A and B play a series of games until one team wins four games. We assume that the games are played independently and that the probability that A wins any game is p. What is the probability that the series lasts exactly five games?

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Guest Feb 28, 2020

2217

Geometry problem.

Let be the origin. Points and lie in the first quadrant. The slope of line segment is and the slope of line segment is If then compute the slope of line segment .

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Guest Feb 28, 2020

464

How do I solve this.

How do I solve a system of equations of 2x-3y=40 over x+5y=7.

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Guest Feb 28, 2020

570

please help me

Nicholas and Nicole saved the same amount of money. After Nicholas lent $82 to Nicole, Nicole had 5 times as much money as Nicholas. How much did Nicole have in the end?

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Guest Feb 28, 2020

343

Help

How many numbers can be expressed as the sum of two or more distinct elements of the set {0,1,2,4,8,16}?

Guest Feb 28, 2020

376

please help anyone

Zach and Alec got in trouble at football practice and have to run laps as a consequence. Zach, who runs at a rate of 2 laps per minute, had completed 5 laps already when he was joined on the track by Alec. Alec's pace is 3 laps per minute. At some point, read more ..

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Guest Feb 28, 2020

1231

Help

If Michael rolls three fair dice, what is the probability that he will roll at least two 1's? Express your answer as a common fraction.

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Guest Feb 28, 2020

1094

Help

Each of the nine dots in this figure is to be colored red, white or blue. No two dots connected by a segment (with no other dots between) may be the same color. How many ways are there to color the dots of this figure? read more ..

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Guest Feb 28, 2020

549

help

A student has sticks of lengths 5 cm and 9 cm. She wants to use a third stick to form a triangle. What are the possible lengths of the third side?

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Guest Feb 28, 2020

562

sunday

In how many different ways can the letters of "SUNDAY" be arranged?
How many of these arrangements begin with an "S"?
How many begin with "S" but do not end with a vowel?

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Guest Feb 28, 2020

386

Finding the sum of a + b?

f(x) = ax + b
f(ax + b) = x

How would I find the sum of a + b? read more ..

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Guest Feb 28, 2020

1585

A vendor sells hot dogs and bags of potato chips. A customer buys 3 hot dogs and 4 bags of potato chips for $6.00. Another customer buys 5 h

A vendor sells hot dogs and bags of potato chips. A customer buys 3 hot dogs and 4 bags of potato chips for $6.00. Another customer buys 5 hot dogs and 5 bags of potato chips for $8.75. Find the cost of each item.

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Guest Feb 28, 2020

553

help please

How many ways are there to put 6 balls in 3 boxes if the balls are not distinguishable but the boxes are?

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Guest Feb 28, 2020

673

+96

math

For what values of x is 2x^2+8x greater or equal to -6? Express your answer in interval notation.

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daddypig Feb 28, 2020

736

+110

Triangles

A right triangle has legs of length 6 and x, and a hypotenuse of length y. The perimeter of the triangle is 18. Compute y.

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brianlaw Feb 28, 2020

733

please help

In preparation for a graduation party, Christine bought peaches, oranges, and bananas. Peaches cost $1.50 each, oranges cost $1.00 each, and bananas cost $0.50 each. A total of $87.50 was spent on the fruit, and 91 pieces of fruit were purchased. If $26.50 read more ..

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Guest Feb 28, 2020

473

help!!!

If one pack contains 8 buns and a package of hamburgers contains 12 burgers, what is the least amount of packs you need to purchase to have an equal amount of each?

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Guest Feb 28, 2020

462

heeeelp I need it rn

Find all the real solutions to

\[\frac{x^2 + 4x}{x - 1} + \frac{72x - 72}{x^2 + 4x} - 18 = 0.\]
Enter all the solutions, separated by commas.

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Guest Feb 28, 2020

All Questions ⁺⁰232716 Questions

help

Please help!

HELP ASAP

Having a bit of trouble with a HW problem, could somebody help me out?

bit of a depressing post

Alexa has set up a lemonade stand outside her house

help

Geometry problem.

How do I solve this.

please help me

Help

please help anyone

Help

Help

help

sunday

Finding the sum of a + b?

A vendor sells hot dogs and bags of potato chips. A customer buys 3 hot dogs and 4 bags of potato chips for $6.00. Another customer buys 5 h

help please

math

Triangles

please help

help!!!

heeeelp I need it rn

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