All Questions ⁺⁰238444 Questions

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polygons

Let B, A, and D be three consecutive vertices of a regular -gon. A regular heptagon is constructed on line AB with a vertex C next to A. Find angle BCD in degrees.

Guest May 28, 2023

May 27, 2023

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178

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help plz

At a cafeteria, Mary orders two pieces of toast and a bagel, which comes out to $3.15. Gary orders a bagel and a muffin, which comes out to $3.50. Larry orders a piece of toast, two bagels, and three muffins, which comes out to $8.15. How many cents does read more ..

Guest May 27, 2023

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150

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+274

Help pls

Two numbers between 0 and 1 on a number line are to be chosen at random. What is the probability that the second number chosen will exceed the first number chosen by a distance greater than 1/4 unit on the number line? Express your answer as a common fraction.
The read more ..

supremecheetah May 27, 2023

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178

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help geo

This is some very hard geometry
Triangle XYZ is equilateral. Points Y and Z lie on a circle centered at O, such that X is the circumcenter of triangle OYZ, and X lies inside triangle OYZ. If the read more ..

Guest May 27, 2023

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170

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+8

HELP PLEASE!!

Thea has a key on her calculator marked $\textcolor{blue}{\bf\circledast}$. If an integer is displayed, pressing the $\textcolor{blue}{\bf\circledast}$ key chops off the first digit and moves it to the end. For example, if $6138$ is on the screen, then read more ..

LemonCake May 27, 2023

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211

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solve

Five times a number is divided by 7 more than the number. If the result is 0, then what was the original number?

Guest May 27, 2023

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172

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help me

The sum $1^2 + 2^2 + 3^2 + 4^2 + \cdots + n^2 = n(n+1)(2n+1) \div 6$. What is the value of $21^2 + 22^2 + \cdots + 40^2$?

Guest May 27, 2023

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201

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triangle

In triangle $ABC,$ $\angle A = p + 2q$ degrees, $\angle B = 6p - 8q$ degrees, and $\angle C = 17p + 2q$ degrees. Find $p$ (in degrees).

Guest May 27, 2023

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167

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fractions

An aquarium tank is 1/6 full of water. When 2 gallons of water are added, the tank becomes 1/2 full. What is the total capacity of the aquarium tank, in gallons?

Guest May 27, 2023

-1

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+614

please help with next step

a 9-gram sample of a mixture A contains 5 grams of Pepper, 2 grams of Ginger and 2 grams of Turmeric. Another mixture B has 40% ginger, 40% turmeric and 20% pepper. If the two mixtures are mixed, and the final mixture has an equal amount of each of read more ..

xxJenny1213xx May 27, 2023

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HELP IMMEDIATELY

Find an equation of the line that passes through the points (-2,1) and ()3,3. Write your equation in either point-slope form, standard form, or slope-intercept form.

Guest May 27, 2023

+1

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+274

Somone (melody or asinus) pls help

P.S. Im saying melody or asinus in the title because their the only moderators active. But anyone can help!
A point in space (x, y, z) is randomely selected so that -1 ≤ x ≤ 1, -1 ≤ y ≤ 1, -1 ≤ z ≤ 1. What is the probability read more ..

supremecheetah May 27, 2023

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182

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polygons

Let B, A, and D be three consecutive vertices of a regular -gon. A regular heptagon is constructed on line AB with a vertex C next to A. Find angle BCD in degrees.

Guest May 27, 2023

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