All Questions ⁺⁰238227 Questions

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178

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Plz help

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

Guest Apr 23, 2023

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167

7

+90

Permutations help please.

Consider all the possible arrangements of the letters in the term "ALLSTARS." How many do not have two same letters next to each other?

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totalkoolnezz Apr 23, 2023

+1

139

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+90

Help with number theory please

How many positive integers are factors of either 144 or 196 but not both?
THE ANSWER IS NOT 21.

totalkoolnezz Apr 23, 2023

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180

0

Need help plz

I graphed it, and it didn't help
What is the smallest distance between the origin and a point on the graph of y = 1/2*(x^2 - 18)?

Guest Apr 23, 2023

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172

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Cool problem

Try this counting problem, its really interesting!
When two standard 6-sided dice are rolled, there are 36 possible outcomes for the sum of the two rolls: one sum of 2, two sums of 3, and so on, up to one sum of 12.
Find read more ..

Guest Apr 23, 2023

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185

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Cphill

What happened to cphilll? he is never on anymore.

Guest Apr 23, 2023

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174

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Need help

Help please help help
In triangle AB, let the angle bisectors be BY and CZ. Given AB = 16, AY = 16, and CY = 16, find BC and BZ.

Guest Apr 23, 2023

Apr 22, 2023

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165

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+1348

Equation

I can't seem to solve this equation properly.
Find all values of a that satisfy the equation a/3 + 1 = a + 3/a + 3.

sandwich Apr 22, 2023

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181

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Help I need help plz

In triangle ABC, AB = 15, BC = 20, and AC = 20. Find the length of the shortest altitude in this triangle.

Guest Apr 22, 2023

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176

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Equations

Can anyone help me with this equation?
Find all real numbers a that satisfy 1/(a^3 + 7) - 7 = 7/(a^3 + 7).

Guest Apr 22, 2023

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176

2

+1348

Equations

How do I solve this?
Five times a number is divided by 7 more than that number. If the result is 2, then what was the original number?

sandwich Apr 22, 2023

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2

87

11

+13

Geometric Probability

Question: Two points on a circle of radius 1 are chosen at random. Find the probability that the distance between the two points is at most 1.
What I Tried:
First, I tried to made a sketch on desmos read more ..

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CheeseSteak1432 Apr 22, 2023

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181

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Triangle

Find the area of triangle ABC if AB = 6, BC = 8, and angle ABC = 90 degrees.

Guest Apr 22, 2023

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180

1

+45

in a hurry

Four 6-sided dice are rolled. What is the probability that exactly two of the dice show a “One Dot”?

LuckyLemonie Apr 22, 2023

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179

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I need help

Can anyone help with this?
Let PQR be an equilateral triangle, centered at O. A point X is chosen at random inside the triangle. Find the probability that X is closer to O than to any of the sides. (In read more ..

Guest Apr 22, 2023

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141

7

+90

Please help me, I don't understand

A school offers both Spanish and Chinese language classes. This past week,10 students dropped from the Chinese classes, which increased the number of students who take neither class from 27 to 31. How did this change impact the number of students who read more ..

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totalkoolnezz Apr 22, 2023

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182

2

+25

Find x

chippers44 Apr 22, 2023

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116

3

What is the intersection point of the graphs of these two functions?

What is the intersection point of the graphs of these two functions?
f(x)=1000*10x
g(x)=8*2x

I got up until f(x)= 103x read more ..

Guest Apr 22, 2023

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203

1

Help needed

Plz help
A standard six-sided die is rolled 7 times. You are told that among the rolls, there was one 1, two 2's, and three 4's. How many possible sequences of rolls could there have been? (For example, 5, 1, 2, 2, read more ..

Guest Apr 22, 2023

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175

3

NT casework i assume?

John inserts some number of parentheses into the expression shown to create a valid mathematical expression. What is the smallest possible integer value of John's expression?

Guest Apr 22, 2023

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167

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+1348

Quadratic equations

The quadratic equation 2x^2+bx+18=x^2+2 has a double root. Find all possible values of b.

sandwich Apr 22, 2023

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203

1

+1348

Quadratic equations

Let r and s be the roots of x^2-6x+2=8x+1. Find (r-s)^2.

sandwich Apr 22, 2023

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