All Questions

437

Please answer question

A stick has a length of $5$ units. The stick is then broken at two points, chosen at random. What is the probability that all three resulting pieces are shorter than $2$ units?

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Guest Jul 27, 2021

449

+26

Help

Bobby spent $1288 of his salary on a TV and 2/5 of a remainder on his car and house loan. He saved the rest of his salary. If he saved 1/4 of his salary, how much was Bobby's salary?

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Fritzizj Jul 27, 2021

412

Precalc

In triangle ABC , we have A = 90 and sin B = 4/17. Find cos C.

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Guest Jul 27, 2021

562

+876

A Question

Hi, I was doing problems in my book when I came across this one:
How many trailing zeros are in $100!$ when written in base 12?
Of course, you need to first count the exponents of $2$ and $3$ in $100!$ first:
$\lfloor \frac{100}{2} read more ..

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MathProblemSolver101 Jul 27, 2021

255

help plz

The line y = (3x + 20)/5 intersects a circle centered at the origin at A and B. We know the length of chord AB is 20. Find the area of the circle.

Guest Jul 27, 2021

430

help quadratic

The height of a golf ball hit off a 128-foot cliff is modeled by the function h(t) = −16t^2 + 32t + 128, where h is height in feet and t is time in seconds. Find the time the golf ball takes to reach the ground.

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Guest Jul 27, 2021

511

+491

Am I Missing Somthing?

the cylidrical cap at the top has no given hight? is it really possible to solve this? Or am i missing somthing obvious?

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Elijah Jul 27, 2021

521

heeeeelllllppppp

How many increasing sequences of three distinct prime numbers have a sum of 20?

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Guest Jul 27, 2021

319

Answer this question please

A stick has a length of $5$ units. The stick is then broken at two points, chosen at random. What is the probability that all three resulting pieces are shorter than $2$ units?

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Guest Jul 27, 2021

322

Please answer question

Let $DEF$ be an equilateral triangle with side length $3.$ At random, a point $G$ is chosen inside the triangle. Compute the probability that the length $DG$ is less than or equal to $1.$

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Guest Jul 27, 2021

422

Graphing

The graph of y=f(x) is shown below, in red. Find the equation that corresponds to the blue graph.
Enter your answer in the form "y=..."

read more ..

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Guest Jul 27, 2021

445

Graphing

The graph of y=f(x) is shown below, in red. Find the equation that corresponds to the blue graph.
Enter your answer in the form "y=..."

read more ..

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Guest Jul 27, 2021

501

Consider a particle following the parametric equations

Consider a particle following the parametric equations

as well as points and. read more ..

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Guest Jul 27, 2021

424

Graphing

The graph of y=f(x) is shown in red. For which x value does f(x)=4?
(Assume grid lines are spaced 1 unit apart)

read more ..

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Guest Jul 27, 2021

452

Please help, thank you

A group of students wanted to determine the height of the Calgary Tower. They measured the angles of elevations from two points that were 2.9km away from each other on either side of the Tower. One angle measured 5.9 degrees
while the other read more ..

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Guest Jul 27, 2021

481

Trigonometry Word problem

Two planes leave Dawson City Airport at the same time. One airplane travels 420 km/hour. The other airplane travels at 375 km/hour. Two hours later they are 1500km apart.
Algebraically determine the angle between their paths, read more ..

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Guest Jul 27, 2021

275

Find the number of lattice points on the hyperbola 4x^2-9y^2=2310

Guest Jul 27, 2021

530

helllllp

There are two concentric spheres of radii 3 units and 6 units. What is the volume, in cubic units, of the region within the larger sphere and not within the smaller sphere? Express your answer in terms of pi.

read more ..

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Guest Jul 27, 2021

295

Algebra

Find all values of x such that
9 + 27/x - 8/x^2 = 0
If you find more than one value, then list your solutions, separated by commas.

Guest Jul 27, 2021

297

Help I need answers quick! Time is running out!

You are an astronaut stranded on an alien planet with one vehicle and one solar-powered generator, which is the only energy source for the vehicle. The good news is that your command center back on earth is sending a rescue shuttle. The bad news : the nearest read more ..

Guest Jul 27, 2021

411

help algebra

Suppose that for some a, b, c we have a + b + c = 1, ab + ac + bc = abc = 4. What is a^3 + b^3 + c^3?

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Guest Jul 27, 2021

533

help

Simplify √(8 - 4√3)

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Guest Jul 27, 2021

556

rates

Alex is making a 4 mile trip. The first two miles were at 30 mph. At what speed must Alex cover the remaining two miles so that the average speed for the entire trip will be

50 mph?
55 mph? read more ..

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Guest Jul 27, 2021

460

+101

Help with Question

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NoUReverse Jul 27, 2021

280

Coordinates

For some positive real number r, the line x + y = r is tangent to the circle x^2 + y^2 = 2r. Find r.

Guest Jul 27, 2021

All Questions ⁺⁰237680 Questions

Please answer question

Help

Precalc

A Question

help plz

help quadratic

Am I Missing Somthing?

heeeeelllllppppp

Answer this question please

Please answer question

Graphing

Graphing

Consider a particle following the parametric equations

Graphing

Please help, thank you

Trigonometry Word problem

Find the number of lattice points on the hyperbola 4x^2-9y^2=2310

helllllp

Algebra

Help I need answers quick! Time is running out!

help algebra

help

rates

Help with Question

Coordinates

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