All Questions

603

please help

The sum of the last four digits of Marian’s phone number is 30. How many such four-digit sequences are there?

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Guest May 25, 2020

535

help

The perimeter of a rectangle is 56 meters. The ratio of its length to its width is 4:3. What is the length of a diagonal of the rectangle?

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Guest May 25, 2020

433

Help Please!

Let Find if the graph of is continuous (which means the graph can be drawn without lifting your pencil from the paper).

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Guest May 25, 2020

553

Help plz

Point P is on side AC of triangle ABC such that angle APB = angle ABP, and angle ABC - angle ACB = 39 degrees. Find angle PBC in degrees.

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Guest May 25, 2020

504

I'm stumped

Let PQR be a triangle such that angle P = angle Q + angle R. Among all three exterior angles of triangle PQR, what is the smallest exterior angle, in degrees?

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Guest May 25, 2020

1208

Find the value of x in degrees.

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Guest May 25, 2020

-1

648

Ratio

The ratio of wine to water in bottle A is 5: 3, and the ratio of wine to water in bottle B is 5: 4. Now take the two bottles of solution at 5: 6 and mix them. What is the ratio of wine to water in the new mixture?
Please show your work read more ..

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Supermomo May 25, 2020

684

17. What is the value of two numbers if their sum is 120 and their difference is 140?

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Guest May 25, 2020

569

help

Find the sum of the divisors of 6561.

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Guest May 25, 2020

571

please help!

A hexagon is circumscribed about a circle with circumference 8*pi. What is the perimeter of the hexagon?

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Guest May 25, 2020

408

really stuck on this one

The line y - 2 = m(x - 3) is tangent to the circle (x - 5)^2 + (y - 1/2)^2 = 25/4. Find all possible values of m.

Guest May 25, 2020

776

geometry

Two circles, one of radius 5 inches, the other of radius 2 inches, are tangent at point P. Two bugs start crawling at the same time from point P, one crawling along the larger circle at 3π inches per minute, the other crawling along the smaller circle at read more ..

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Guest May 25, 2020

617

please help

In 1960, there were 450,000 cases of measles reported in the U.S. In 1996, there were 500 cases reported. How many cases of measles would have been reported in 1987 if the number of cases reported from 1960 to 1996 decreased linearly?

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Guest May 25, 2020

534

Please help!

A bag contains five white balls and four black balls. Your goal is to draw two black balls.
You draw two balls at random. Once you have drawn two balls, you put back any white balls, and redraw so that you again have two drawn balls. What is the probability read more ..

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Guest May 25, 2020

683

help

When a water tank is 30% full, it contains 27 gallons less than when it is 20% empty. How many gallons of water does the tank hold when it is full?

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Guest May 25, 2020

630

help

The number 64 is both a perfect cube and a perfect square, since 4^3 = 64 and 8^2 = 64. What is the next larger number that is both a perfect cube and a perfect square?

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Guest May 25, 2020

1169

Help

Find the sum of the x-coordinates of the solutions to the system of equations y = |x^2-6x+5| and y = (29/4)-x .

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Guest May 25, 2020

609

help

If each face of a cube has a perimeter of 12 centimeters, what is the volume of the cube, in cubic centimeters?

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Guest May 25, 2020

1051

Can someone explain how to solve this problem?

Four circles are drawn. Let be the areas of the regions, so is the area inside the smallest circle, is the area outside the smallest circle and inside the second-smallest circle, and so on. The areas satisfy
Let denote the radius of the read more ..

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Guest May 25, 2020

898

help

Three cards are drawn at random from a standard deck of cards, without replacement. Find the probability that the suits of the cards are spades, hearts, spades, in that order.
Remember that if you get stuck on a homework problem, you can read more ..

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Guest May 25, 2020

565

please help!!

What are 4 same number that +to 6

pls help! thanks!

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Guest May 25, 2020

562

help

If g(x) = 2x^2 - 3 and h(x) = 4x^3 + 1, what is the value of g(h(-1))?

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Guest May 25, 2020

445

really urgent please help

Solve the system
x + 3y = 6,
xy = z 2 + 3
in real numbers. read more ..

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Guest May 25, 2020

577

help

The first term of a particular sequence is 5, and each successive term is one less than twice the previous term. What is the value of the sixth term?

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Guest May 25, 2020

All Questions ⁺⁰237665 Questions

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Help plz

I'm stumped

Find the value of x in degrees.

Ratio

17. What is the value of two numbers if their sum is 120 and their difference is 140?

help

please help!

really stuck on this one

geometry

please help

Please help!

help

help

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Can someone explain how to solve this problem?

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please help!!

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really urgent please help

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