All Questions ⁺⁰237807 Questions

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1889

1

help

In the diagram, AB = 13 cm, DC = 20 cm, and AD = 5 cm. What is the length of AC, to the nearest tenth of a centimeter?

Guest Jan 2, 2019

0

1041

1

help

The product of two positive integers is 144. The ratio of their least common multiple to their greatest common divisor is equal to 9. What is the sum of the two integers?

Guest Jan 2, 2019

0

709

1

help

Suppose that a, b and are positive real numbers such that , , and . Find the value of

Guest Jan 2, 2019

Jan 1, 2019

0

812

1

help

What is the sum of all the distinct positive two-digit factors of 144?

Guest Jan 1, 2019

0

763

1

help

How many integers are there such that and is a single-digit number?

Guest Jan 1, 2019

0

720

1

number theory

Given that , find , as a residue modulo 47. (Give a number between 0 and 46, inclusive.)

Guest Jan 1, 2019

0

1830

1

help

A cone is formed from a 300-degree sector of a circle of radius 18 by aligning the two straight sides. What is the result when the volume of the cone is divided by ?

Guest Jan 1, 2019

0

928

1

help

A right cylinder with a base radius of 3 units is inscribed in a sphere of radius 5 units. The total volume, in cubic units, of the space inside the sphere and outside the cylinder is . Find , as a common fraction.

Guest Jan 1, 2019

0

1225

4

Godly math problems

6)Prove that 10002-9992 +9982-9972+...+22-12 is equal to the sum of the first thousand positive integers
7) suppose that p>q>0. sketch a square of side p and another square of side q, and give a pictorial demonstration of the identity read more ..

Guest Jan 1, 2019

0

536

1

business algebra

what is 1/3(x+5)=2

Guest Jan 1, 2019

0

782

2

+845

Circle

ONLY question c please
for centre and radius my answer is (3,-2) and r = 5
im not sure what the question means by postive y axis and the method to get to r read more ..

YEEEEEET Jan 1, 2019

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628

1

Help Please, very much appreitiated thank you.

Amanda has recorded how long it takes her to do her morning activities. She does all of the listed activities each day. She starts the first activity at a.m. and has a two-minute break between each adjacent pair of activities. At what time does read more ..

Guest Jan 1, 2019

+1

1013

2

+7

a hard question

the negative reciprocal of the sum of all values of x that satisfy the equation x-sqrt(x+1)/x+sqrt(x+1)=11/5

Below is my steps but idk if its right
36x2 (x to the power of 2) =162 (16 to the power of 2) (x+1) read more ..

ihatespiritofmath Jan 1, 2019

+3

1009

2

+1253

Happy New Year Everyone!

We're already at 2019. Happy new year! I couldn't stop myself from making this post, but I think it's good to share the spirit. It's now 2019 for every single place on Earth. Thank you all for being great and supportive! Hopefully your lives - inside web2.0calc read more ..

off-topic

CoolStuffYT Jan 1, 2019

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2114

1

help

A right cylindrical oil tank is 15 feet tall and its circular bases have diameters of 4 feet each. When the tank is lying flat on its side (not on one of the circular ends), the oil inside is 3 feet deep. How deep, in feet, would the oil have been if the read more ..

Guest Jan 1, 2019

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788

1

cylinders

A cylindrical quarter has a inch diameter and a inch height. What would be the number of inches in the height of a coin whose volume is exactly four times that of the given quarter and whose diameter equals inches? Express your answer read more ..

Guest Jan 1, 2019

0

928

2

help

The radius of a right circular cylinder is decreased by 20% and its height is increased by 25%. What is the absolute value of the percent change in the volume of the cylinder?

Guest Jan 1, 2019

0

499

1

help

Given that , what is the smallest positive integer whose positive divisors have a product of ?

Guest Jan 1, 2019

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