maximum

256 Questions
115 Answers

-2

66

1

+816

help plz

Help this is a problem
Point $P$ is chosen at random inside triangle $ABC$. If $AB = \sqrt{2}$, $BC = 1$, and $CA = 1$, then what is the probability that $P$ is closer to $C$ than it is to $A$? lee mas ..

maximum 13 ago 2023

-2

34

5

+816

A quadratic equation

Help plz!
The equation $18+5x^2=20x + 20$ has two distinct solutions. If each solution is rounded to the nearest integer, and then these two integers are multiplied together, what is the result?

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maximum 10 ago 2023

-2

63

1

+816

A special quadratic

Which quadratic is this?
Let $p(x) = x^2 + ax + b,$ where $a$ and $b$ are real numbers. Find the number of ordered pairs $(a,b)$ such that $p(a) = p(b) = 1.$

maximum 10 ago 2023

-2

69

2

+816

ordering numbers

Arrange the following numbers in increasing order (smallest first, biggest last)
A = 2^(1/2)*4^(1/6)
B = (128)^(1/12)/64^(1/3)
C = (8^(1/5))^(2^2) lee mas ..

maximum 10 ago 2023

-2

78

1

+816

help plz

I need help with a function problem:
Find the range of the function $f(x) = \sqrt{x + 5} + \sqrt{20 + x}.$

maximum 10 ago 2023

-2

37

1

+816

Circle

The radius $r$ of a circle inscribed within three mutually externally tangent circles of radii $a$, $b$ and $c$ is given by
\[r = \sqrt{ab + ac + bc}.\]
What is the value of $r$ when $a = 4$, $b = 9$ and $c = 36$?

maximum 9 ago 2023

-1

20

2

+816

proper divisors

The proper divisors of $12$ are $1,$ $2,$ $3,$ $4$ and $6$. A proper divisor of an integer $N$ is a positive divisor of $N$ that is less than $N$. What is the sum of the proper divisors of the sum of the proper divisors of $256$?

maximum 9 ago 2023

-2

75

2

+816

Complex numbers

Solve for $z$ in the following equation: $2-3iz = 3 + 2z$.

maximum 8 ago 2023

-2

41

1

+816

integral solutions

Find the largest integral value of $x$ which solves: $\frac{1}{3}<{\frac{x}{5}}<{\frac{7}{8}}$

maximum 8 ago 2023

-2

48

4

+816

rectangle question

A non-square rectangle has integer dimensions. The number of square units in its area is four times the number of units in its perimeter. What is the smallest possible perimeter of the rectangle?

maximum 8 ago 2023