maximum

256 Questions
127 Answers

-2

87

0

+818

Quadratic equations

The height (in meters) of a baseball follows a trajectory given by $h(t) = -4.9t^2 + 14t - 0.4$ at time $t$ (in seconds). As an improper fraction, for how long is the baseball above a height of $4$ meters?

maximum 8 août 2023

-2

52

1

+818

Functions

Which of the following diagrams represent graphs of functions?
Enter the letters of the diagrams that represent functions, separated by commas. lire plus ..

maximum 8 août 2023

-2

69

1

+818

Domain

What is the domain of the function $$u(x) = \frac{1}{\sqrt{|x|}}?$$ Express your answer in interval notation.

maximum 8 août 2023

-2

100

2

+818

Pentagon

Can someone draw a diagram for this? It doesn't seem possible.
All sides of the convex pentagon $ABCDE$ are of equal length, and $\angle A = \angle C = 90^\circ$. What is the degree measure of $\angle E$?

maximum 8 août 2023

-2

63

2

+818

Factoring

The expression $6x^2 + 17x + 5 - 5x^2 - 11x$ can be written in the form $(Ax+1)(Bx+5)$ where $A$ and $B$ are integers. What is the value of $AB$?

maximum 8 août 2023

-3

91

3

+818

Help me plz

For a particular peculiar pair of dice, the probabilities of rolling $1,$ $2,$ $3,$ $4,$ $5,$ and $6$ on each die are in the ratio $1:2:3:4:5:6$. What is the probability of rolling a total of $2$ on the two dice?

ElectricPavlov ●●●

maximum 7 août 2023

-2

94

1

+818

Problem with square

Inside a square with side length $10$, two congruent equilateral triangles are drawn such that they share one side and each has one vertex on a vertex of the square. What is the total area of the two equilateral triangles? lire plus ..

maximum 7 août 2023

-1

88

1

+818

help with perimeter

Help I need the perimeter and Im suck
In the diagram, what is the perimeter of polygon $PQRST$?

maximum 7 août 2023

-2

35

2

+818

Circles

How do you solve this?
A circle has an area of $M\text{ cm}^2$ and a circumference of $N\text{ cm}$. If $\dfrac{M}{N}=\dfrac{1}{2}$, what is the radius of the circle, in cm?

maximum 7 août 2023

-1

43

7

+818

Equation

Find the product of all real values of $r$ for which $\frac{1}{2x}=\frac{r-x}{2}$ has exactly one real solution.

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maximum 7 août 2023

+818

-1

Do not post AoPS homework.

maximum20 janv. 2025