All Questions ⁺⁰235278 Questions

0

68

0

+1911

coordinate question

Line $\ell_1$ is horizontal and passes through $(2,-8)$. Line $\ell_2$ is vertical and passes through $(-7,5)$. Line $\ell_3$ passes through $(-1,5)$ and $(6,-2)$. Line $\ell_4$ passes through $(13,-5)$ and $(7,-6)$. Find the point read more ..

tomtom Oct 5, 2023

Oct 4, 2023

0

34

1

+817

help plz with inequality

Find all $x$ such that both $2x$ and $3x-7$ are in the interval $(-1,12)$.

maximum Oct 4, 2023

0

35

0

+817

help help

Find all $x$ such that $1-3x < x + 8 \le 7-x$. Give your answer in interval notation.

maximum Oct 4, 2023

0

40

1

+817

need help plz

Find all $z$ such that neither $2+z-5z$ nor $2-z+8z$ is in the interval $(-7,13]$. Express your answer as an interval or as a union of intervals.

maximum Oct 4, 2023

0

34

1

+817

inequality problem

Find all $w$ so that neither $-2(6+2w)\le -16 + 7w$ nor $-3w\ge 18 - 5w + 3$.

maximum Oct 4, 2023

0

34

2

+82

Probability & counting

Three adults and three children are to be seated at a circular table. In how many different ways can they be seated if each child must be next to two adults? (Two seatings are considered the same if one can be rotated to form the other.)

xxyoohoo Oct 4, 2023

0

40

1

+4

Help please

Let f be a function such that f(x+y) = x+f(y) for any 2 real numbers x and y. If f(0) = 2 then what is f(2012)

Wbxsi5 Oct 4, 2023

0

61

0

+1348

help probability

A stick is broken at two points, chosen at random. If the length of the stick is 6 units, then what is the probability that all three resulting pieces are shorter than 2 units?

sandwich Oct 4, 2023

0

40

0

+1348

help plz

I need help with probability.
A box contains 24 tiles. Each tile has certain properties:
Each tile is made of wood or plastic.
Each tile is red, yellow, or blue.
Each tile is a triangle, square, pentagon, read more ..

sandwich Oct 4, 2023

0

43

2

+82

CPHILL PLEASE HELP

Six children are each offered a single scoop of any of flavors of ice cream from the Combinatorial Creamery. In how many ways can each child choose a flavor for their scoop of ice cream so that some flavor of ice cream is selected by exactly read more ..

xxyoohoo Oct 4, 2023

0

51

1

+1911

help counting

In how many ways can $4$ balls be placed in $8$ boxes if neither the balls nor the boxes are distinguishable?

tomtom Oct 4, 2023

0

40

0

+1911

counting problems

a) A baking club wants to form an executive committee. There are 12 people in the baking club, including Mark. In how many ways can the baking club form an executive committee with 2 people?
b) A baking club wants to form read more ..

tomtom Oct 4, 2023

0

53

2

+4

What is X ?

X squared, minus X = 1
what is X ?

Funkinetk Oct 4, 2023

0

36

1

+4

Inverse Trig Functions and Right Triangles

Find all angles 𝜃 between 0° and 180° satisfying the given equation. Round your answer to one decimal place.
tan(𝜃) = 9
Im cant figure out how to solve these types of problems.

meisme Oct 4, 2023

Oct 3, 2023

0

33

1

+4

aberga

Aaliyah is in the business of manufacturing phones. She must pay a daily fixed cost to rent the building and equipment, and also pays a cost per phone produced for materials and labor. Let CC represent the total cost, in dollars, of producing pp phones read more ..

dcrfrt Oct 3, 2023

-1

30

1

+817

Plz help

Help I dont know this
Three adults and three children are to be seated at a circular table. In how many different ways can they be seated if each child must be next to at least one adult? (Two seatings are considered read more ..

maximum Oct 3, 2023

0

57

1

+1911

palindromes

A palindrome is a number that is the same when read forwards and backwards, such as $43234$. Find the number of $4$-digit palindromes that are divisible by $13.$

tomtom Oct 3, 2023

0

30

1

+1911

choosing cards

A standard deck of cards has $52$ cards divided into $4$ suits, each of which has $13$ cards. Two of the suits ($\heartsuit$ and $\diamondsuit$, called 'hearts' and 'diamonds') are red, the other two ($\spadesuit$ and $\clubsuit$, called 'spades' read more ..

tomtom Oct 3, 2023

0

51

0

+1911

polynomial roots

The equation $x^3 + 8x^2 - 4x + c = 6x^2 - 12x$ has three roots, one of which is the sum of the other two. What is $c$?

tomtom Oct 3, 2023

0

44

0

+1911

help plz

Phoenix hiked the Rocky Path Trail last week. It took four days to complete the trip. The first two days she hiked a total of $22$ miles. The second and third days she averaged $28$ miles per day. The last two days she hiked a total of $20$ miles. The total read more ..

tomtom Oct 3, 2023

0

49

1

+1911

mod question

Given $m\geq 2$, denote by $b^{-1}$ the inverse of $b\pmod{m}$. That is, $b^{-1}$ is the residue for which $bb^{-1}\equiv 1\pmod{m}$. Sadie wonders if $(a+b)^{-1}$ is always congruent to $a^{-1}+b^{-1}$ (modulo $m$). She tries the example $a=2$, $b=3$, read more ..

tomtom Oct 3, 2023

0

56

1

+1911

pyramid question

A right pyramid has a square base. The area of each triangular face is one-third the area of the square face. If the total surface area of the pyramid is $432$ square units, then what is the volume of the pyramid in cubic units? read more ..

tomtom Oct 3, 2023

Oct 2, 2023

0

57

0

+1911

inequality

Find all $u$ such that neither $2u$ nor $-2u + 7$ is in the interval $(-\infty,1)$.

tomtom Oct 2, 2023

0

56

0

+1911

integers

How many integers $n$ satisfy $2\le|\frac{n}{7}-\frac15|\le8$?

tomtom Oct 2, 2023

3 Online Users