All Questions

250

y varies jointly as x and the square of z

Guest Jan 18, 2022

-1

614

+28

1.11 Unit Test: Similarity - Part 1

△ABC∼△EFG. Given m∠C=52° and m∠E=61°, what is m∠B? Enter your answer in the box.

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ora2004 Jan 18, 2022

388

+28

1.05 Quiz: Directed Line Segments

Point A is located at (5, 10) and point B is located at (20, 25). What point partitions the directed line segment AB¯¯¯¯¯ into a 3:7 ratio?

ora2004 Jan 18, 2022

374

Minimum

What is the minimum value of the expression x^2 + y^2 + 2x - 4y + 8 - 10y + 3y for real x and y?

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Guest Jan 18, 2022

261

Complex Numbers

Find the number of ordered pairs (a,b) of integers such that $|a + bi| \le 8.$

Guest Jan 18, 2022

421

Geometry

There is a circle in the coordinate plane. If the radius doubles, the area increases by units. Find the new radius of the circle

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Guest Jan 18, 2022

241

Algebra

Solve for $x$: $4x^{1/3}-2 \cdot \frac{x}{x^{2/3}}=7+\sqrt[3]{x}$.

Guest Jan 18, 2022

284

Hard question (I think)

A three digit Hexadecimal (base-16) number is chosen at random, with each number having an equal probability of being chosen. Its digits are rearranged in every possible way, and all of the distinct arrangements of its digits are added together. (For example, read more ..

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Guest Jan 18, 2022

-1

460

+218

Sorry Melody - I wrote the Question Down Wrong

Please find the original thread, and answer here: https://web2.0calc.com/questions/manipulating-exponents

Melody the question I wrote was wrong. It was actually:
read more ..

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MathyGoo13 Jan 18, 2022

410

Please help

I am not sure where to get started... please advise.

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Guest Jan 18, 2022

227

Need some help!

Heres a question that our teacher assigned over the weekend: carlos stands 9 meters from the center of a merry-go round that is spinning at constant speed, and clarita stands 6 meters from the center. If Carlos speed is 3m/s what is claritas speed in meters read more ..

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Guest Jan 18, 2022

372

help with equation

Find all real solutions to
x^2 + 4x + 4 =
If you find more than one, then list the values separated by commas.

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Guest Jan 18, 2022

298

Hard geometry question

A right triangle with a perimeter of 60 units has an altitude (to the hypotenuse) of length 10 units. Find the sum of the lengths of the two (non-hypotenuse) legs of this triangle.

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Guest Jan 18, 2022

347

Trig problem

Calculate
Answer in radians.

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Guest Jan 18, 2022

330

Need help

Let AB be a diameter of a circle, and let C be a point on the circle such that AC = 8 and . The angle bisector of angle ACB intersects the circle at point M. Find CM.

read more ..

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Guest Jan 18, 2022

266

Trigonometry problem, pls help

Let be an angle between and such that

Assume that . Then if the what is ?

Guest Jan 18, 2022

311

geometry

Triangle ABC is an isosceles triangle with AC=BC and angle C =120°. Points D and E are chosen on segment AB so that AD=DE=EB. Find angle CDE

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Guest Jan 18, 2022

357

Divisors

How many positive divisors do 840, 960, 1200, and 700 have in common?

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Guest Jan 18, 2022

Jan 17, 2022

421

Coordinates

The circle 2x^2 = -2y^2 + 2x - 4y + 20 is inscribed inside a square which has a pair of sides parallel to the x-axis. What is the area of the square?

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Guest Jan 17, 2022

407

Math, Thks

Amy folded a total of 516 paper cranes and stars for a charity fair on the 1st day. After selling 5/6 of the number of cranes and 2/3 of the number of stars, she folded another 72 cranes and 84 stars for sale on the 2nd day. Now the ratio read more ..

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Guest Jan 17, 2022

325

Pls help. All help greatly appreciated

There exist nonzero integers and such that the quadratic
has one integer root and one non-integer root. Find the non-integer root.

read more ..

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Guest Jan 17, 2022

351

help geometry

In triangle ABC, AB = AC. Point P lies on line AB such that CP = BC. If angle APC = degrees, what is angle ACP(in degrees)?

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Guest Jan 17, 2022

402

Number Theory

Find the smallest numerical palindrome that is divisible by all the digits 1, 2, 3, 4, 6, 7, 8, and 9.

A palindrome is a number that reads the same forwards and backwards, like 11 and 5005.

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Guest Jan 17, 2022

420

+10

Help ASAP I HATE this question

The students in Mrs. Reed's English class are reading the same 760-page novel. Three friends, Alice, Bob and Chandra, are in the class. Alice reads a page in 20 seconds, Bob reads a page in 45 seconds and Chandra reads a page in 30 seconds. Chandra and read more ..

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SparkleDew Jan 17, 2022

All Questions ⁺⁰237685 Questions

y varies jointly as x and the square of z

1.11 Unit Test: Similarity - Part 1

1.05 Quiz: Directed Line Segments

Minimum

Complex Numbers

Geometry

Algebra

Hard question (I think)

Sorry Melody - I wrote the Question Down Wrong

Please help

Need some help!

help with equation

Hard geometry question

Trig problem

Need help

Trigonometry problem, pls help

geometry

Divisors

Coordinates

Math, Thks

Pls help. All help greatly appreciated

help geometry

Number Theory

Help ASAP I HATE this question

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