All Questions ⁺⁰231061 Questions

0

23

0

+1791

lines

A line passes through the points $P$ and $Q.$ If $P = (-8,2)$ and $Q = (4,-7),$ then write the equation of this line in the form $Ax + By = C,$ where $A$, $B$, and $C$ are integers with greatest common divisor $1,$ and $A$ is positive.

tomtom Oct 18, 2023

0

18

2

+30

Difficult Expected Value Problem

A standard deck of cards contains 52 cards. These 52 cards are arranged in a circle, at random. Find the expected number of pairs of adjacents cards that are both
I. Aces.
II. face cards (King, Queen, and Jack).

knotW Oct 18, 2023

0

26

0

+819

geometry

In triangle $ABC$, $M$ is the midpoint of $\overline{BC}$, and $N$ is the midpoint of $\overline{AC}$. The perpendicular bisectors of $BC$ and $AC$ intersect at a point $O$ inside the triangle. If $\angle AOB = 90^\circ$, then find the measure read more ..

maximum Oct 18, 2023

+1

14

2

+819

domain

If is a function whose domain is [-8,8], and , then the domain of is an interval of what width?

maximum Oct 18, 2023

0

11

4

+46

Number Theory

In the array below, in how many different ways can we start with the letter and move from letter to letter (horizontally, vertically, or diagonally), to spell the word "ARCH"?

A R C H
R R C H
C C C H read more ..

NotLatePY Oct 18, 2023

Oct 17, 2023

+2

16

0

+144

Stats

Hey guys, just a random question, when you go to "My Profile", on the fourth row (under "membership") it says "Stats" and has a box next to it. I see that most of the top users have a bar graph next to their names that I think is probably their "Stats".
How read more ..

BlackjackEd Oct 17, 2023

Oct 16, 2023

0

18

2

+1679

help plz

Triangle XYZ is equilateral, with O as its center. A point P is chosen at random. Find the probability that P is closer to point O than to any of the side lengths.

wiseowl Oct 16, 2023

0

8

2

+1679

help probability

The numbers $x_1,$ $x_2,$ $x_3,$ $x_4$ are chosen at random in the interval $[0,1].$ Let $I$ be the interval between $x_1$ and $x_2,$ and let $J$ be the interval between $x_3$ and $x_4.$ Find the probability that intervals $I$ and $J$ both contain read more ..

wiseowl Oct 16, 2023

Oct 15, 2023

0

15

1

+54

Quick trig question

Given csc(x) = 25/20. Use appropriate pythagorean identity to find the value of cot(x).
I think that cot(x) = 15/20 but I'm not completely sure
Thank you!

CurryCrafterMaster Oct 15, 2023

0

26

0

+4

Need help with Calc question

x 1 2 3 4 f(x) 4 3 2 1 f'(x) 3 1 4 2 g(x) 1 4 3 2 g'(x) 2 3 1 4 a) h'(1) if h(x) = sqrt(g(x)
b) h'(4) if h(x) = (f(x))^(3/2)

dpark0415 Oct 15, 2023

0

32

0

+819

help hard geometry

In triangle $ABC$, $M$ is the midpoint of $\overline{BC}$, and $N$ is the midpoint of $\overline{AC}$. The perpendicular bisectors of $BC$ and $AC$ intersect at a point $O$ inside the triangle. If $\angle AOB = 90^\circ$, then find the measure read more ..

maximum Oct 15, 2023

0

18

1

+819

Help Angles

In triangle $ABC$, let $I$ be the incenter of triangle $ABC$. The line through $I$ parallel to $BC$ intersects $AB$ and $AC$ at $M$ and $N$, respectively. If $AB = 5$, $AC = 5$, and $BC = 8$, then find the area of triangle $AMN$.

maximum Oct 15, 2023

0

22

1

+819

help plz

If $f(x)$ is a function whose domain is $[-8,8]$, and $g(x)=f\left((x^2 - 2)/(x + 1)\right)$, then the domain of $g(x)$ is an interval of what width?

maximum Oct 15, 2023

0

21

1

+30

Counting Problem (Help Please)

Virginia writes down the value of the products , where and represent integers from to , inclusive. How many distinct numbers does Virginia write?

knotW Oct 15, 2023

0

13

2

+20

Please help. Thanks

At a stationery shop, the ratio of the number of blue pens to the number of red pens is 4:5. After 280 blue pens and 280 red pens were sold, the ratio of blue pens to the red pens became 9:20. How many pens were there at the stationery shop at
f read more ..

DSUDLER4251 Oct 15, 2023

Oct 14, 2023

Oct 13, 2023

0

11

2

+1347

function

The function $f(x)$ is defined only on domain $[-1,2]$, and is defined on this domain by the formula
$$f(x) = 2x^2-8x+1.$$
What is the range of $f(x)$? Express your answer as an interval or as a union of intervals.

sandwich Oct 13, 2023

+1

18

1

+1347

need help

Let
$$f(x) = \frac{1}{1+\frac{2}{1+\frac 3x}}.$$
There are three real numbers $x$ that are not in the domain of $f(x)$. What is the sum of those three numbers?

sandwich Oct 13, 2023

0

16

3

+28

help pls

In a row of five squares, each square is to be colored either red, yellow, or blue, so that no two consecutive squares have the same color. How many ways are there to color the five squares?

Icebulb2 Oct 13, 2023

0

28

1

+1347

Help with domain

Find the domain of the function $$f(x) = \frac{\sqrt{x}}{\sqrt{x^2}}.$$ Express your answer as an interval or as a union of intervals.

sandwich Oct 13, 2023

0

11

1

+1347

Function

Find the domain of the function $$f(x) = \frac{1}{x+8} + \frac{1}{\sqrt{x - 8}} + \frac{1}{\sqrt{8 - x}}.$$ Express your answer as a union of intervals.

sandwich Oct 13, 2023

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