All Questions

385

For how many values of theta such that -8pi ≤ theta ≤ 8pi is sin(theta) = 0.12345?

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Guest Sep 26, 2021

379

+24

What is the Equation that Represents the Pattern?

Thank you ahead of time

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genericnamealias Sep 26, 2021

339

Number Theory

If I expand 25*24*23* ... *12*11*10, how many zeros are there at the end of the number I get?

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Guest Sep 26, 2021

352

System question

For a certain value of k, the system
3a + 4b = 7,
6a + 8b = k
has infinitely many solutions (a,b). What is k? read more ..

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Guest Sep 26, 2021

209

help math

Mikey has ten marbles in a bag with the number 5 on 8 faces and the number 8 on 2 faces. What is the expected value of the number present when one marble is selected from the bag

Guest Sep 26, 2021

275

arithemetic / geometric sequences (pls help asap)

There are five cards on the table with positive integers written on both sides. The numbers, in order, 1, 2, 6, 7, and 15 are written on their visible sides. Lizzie claims that we can flip over some cards so that both sides show arithmetic sequences, without read more ..

Guest Sep 26, 2021

678

Someone please help(circles)

If a girl 5 feet tall could walk around the equator, how many feet further would the top of her head travel than her feet? Assume that the earth is a sphere. Express your answer in terms of pi.

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Guest Sep 26, 2021

293

help counting

A math teacher wants to create a problem that involves multiplying a four-digit number by a
three-digit number. The four-digit number can only contain digits from 0 to 6, without repeats. The
three-digit number can only contains digits from 0 to 8, read more ..

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Guest Sep 26, 2021

349

i have no idea how to do this pls help

Professor Grok writes an arithmetic sequence with three terms. Calamitous Clod creates a geometric sequence with common ratio 2 by adding 2 to the second term and 11 to the third term. What is the first term of their sequences?

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Guest Sep 26, 2021

315

pls help asap

Grogg has a sequence whose first k terms sum to k^2 for every k What is the 987th term in his sequence?

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Guest Sep 26, 2021

324

Counting

If you write out the numbers from 1 through 60 (including 1 and 60), how many numbers have a "5" or "4" in them?

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Guest Sep 26, 2021

345

PLEASE HELP SO BAD!!!

5 and a half pounds of chocolate chip cookies are to be packed into bags each of which holds a third of a pound. How many bags will be filled and how much will be left for the packer to munch on?

I am so stuck on this! I tried several read more ..

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Guest Sep 26, 2021

219

help math

How many different numbers between 1/1000 and 1000 can be written either as a power of 2 or as a power of 5, where the exponent is an integer?

Guest Sep 26, 2021

255

Probability

A card is drawn from a standard deck, it is replaced and another card is drawn. What is the probability that the first card is a jack and the second card is a heart?

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Guest Sep 26, 2021

348

Inequality

Solve the inequality 2x - 5 <= -x +12 + 3x - 6. Give your answer as an interval.

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Guest Sep 26, 2021

297

Geometry

Five friends live on the same street. Their houses are at points A, B, C, D, and E, with the distances shown.

read more ..

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Guest Sep 26, 2021

489

Chemistry

The volume of a single copper atom is 8.74×10-24 cm3. What is the volume of a copper atom in microliters?

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Guest Sep 26, 2021

341

Please help. I am struggling on this.

If Bob gives 1/4th of his marbles to Joe, Bob will have the same number of marbles as Joe has. If Joe gives 1/4th of his marbles to Bob, Bob will have three times the number of marbles that Joe has. How many marbles does Bob have?

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Guest Sep 26, 2021

249

help math

Find the set of all rea numbers x so that x^2 <= 3. Express your answer in interval notation

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Guest Sep 26, 2021

343

need help

When (a+b)^5 is expanded using the Binominal Theroem for certain values of a and b, the second term is 15, and the third term is 60. Find the first term

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Guest Sep 26, 2021

338

need help

Circles with centers of (2,2) and (17,12) are both tangent to the x-axis. What is the distance between the closest points of the two circles?

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Guest Sep 26, 2021

Sep 25, 2021

446

+218

Where is the Mistake in this Question!?

Hello, I am trying to solve this radicals equation involving square roots. Please view the image below.

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MathyGoo13 Sep 25, 2021

277

repost - please help

Find all $x$ for which

$$\left| x - \left| x-1 \right| \right| = \lfloor x \rfloor.$$
Express your answer in interval notation.

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Guest Sep 25, 2021

198

Geometry

Segment AB measures 4 cm and is a diameter of circle P. In triangle ABC, point C is on circle P and BC = sqrt(2) cm. What is the area of the shaded region?

read more ..

Guest Sep 25, 2021

All Questions ⁺⁰234934 Questions

For how many values of theta such that -8pi ≤ theta ≤ 8pi is sin(theta) = 0.12345?

What is the Equation that Represents the Pattern?

Number Theory

System question

help math

arithemetic / geometric sequences (pls help asap)

Someone please help(circles)

help counting

i have no idea how to do this pls help

pls help asap

Counting

PLEASE HELP SO BAD!!!

help math

Probability

Inequality

Geometry

Chemistry

Please help. I am struggling on this.

help math

need help

need help

Where is the Mistake in this Question!?

repost - please help

Geometry

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