All Questions ⁺⁰230469 Questions

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gcd

Suppose that n is a positive integer such that 9n - 2 and 7n + 33 are not relatively prime. What is the value of gcd(9n - 2, 7n + 33)?

Guest Sep 4, 2023

Sep 3, 2023

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30

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plz help!

Ruth has a beaker containing a solution of 800 mL of acid and 200 mL of water. She thinks the solution is a little strong, so she drains 150 mL from the beaker, adds 150 mL of water, and stirs the solution. Ruth thinks the solution is still too strong, read more ..

Guest Sep 3, 2023

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Algebra 2

Which of the following statements ares true

(A) If the graph of an exponential function is reflected in the x-axis, then we obtain the graph of another exponential function
(B) If the graph of an exponential function read more ..

Guest Sep 3, 2023

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32

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math question

(you can select multiple) if x is a positive integer, than x is also a/an a) rational number b) whole number c) integer 4) natural number

Guest Sep 3, 2023

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31

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please help asap, i'm really stuck

In the SuperLottery, three balls are drawn (at random, without replacement) from white balls numbered from 1 to 12 and one SuperBall is drawn (at random) from red balls numbered from 13 to 20. When you buy a ticket, you choose three numbers from 1 read more ..

Guest Sep 3, 2023

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8

+656

The most creative title ever; 'Help!'

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 3.
This question is very similar to other questions asked but I have read more ..

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Keihaku Sep 3, 2023

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21

4

+656

Card Deck Problem

A standard deck of cards has 52 cards divided into 4 suits, each of which has 13 cards. Two of the suits (❤️ and ◆, called 'hearts' and 'diamonds') are red, the other two (♠️ and ♧, called 'spades' and 'clubs') are black. read more ..

Keihaku Sep 3, 2023

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15

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+819

help inverse

Let $f(x) = ax + b$ for $0 \le x \le 1$, where $a$ and $b$ are constants such that $a < 0$. What is the inverse of $f(x)$ in terms of $a$ and $b$?

maximum Sep 3, 2023

-2

18

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+819

domain

Find the domain of the function $f(x)=\frac{x+6}{\sqrt{x^2}-3x-4} + \sqrt{x - 8} + \frac{1}{\sqrt{(x + 4)(x + 3)}}$.

maximum Sep 3, 2023

-2

21

0

+819

domain question

Find the largest real number $c$ such that $1$ is in the range of $f(x)=x^2-5x+c-3x+8$.

maximum Sep 3, 2023

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18

5

+656

Venn Diagram

Dogs in the GoodDog Obedience School win a blue ribbon for learning how to sit, a green ribbon for learning how to roll over, and a white ribbon for learning how to stay. There are 100 dogs in the school.
62 have blue ribbons, 68 have green ribbons, read more ..

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Keihaku Sep 3, 2023

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+656

Permutation Question

In the Olympic women's skating competition, the gold medal goes to first place, silver to second, and bronze to third. If there are 15 skaters, including 4 Americans, in how many ways can the medals be awarded to three of the 15 skaters?

Keihaku Sep 3, 2023

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31

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asymptotes

How many vertical asymptotes does the graph of $y = \frac{1}{x^3-3x^2+7x-15}$ have?

Guest Sep 3, 2023

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26

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spheres

Rose has a spherical plum of radius $2$ and a spherical watermelon of radius $8$. She builds a glass sphere around the two fruits to contain them, making the sphere as small as possible. When she has done this, she places a golf ball inside read more ..

Guest Sep 3, 2023

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30

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quadratic

Find the non-zero value of $c$ for which there is exactly one positive value of $b$ for which there is one solution to the equation $x^2 + (b + 4c)x + c^2 = 0$.

Guest Sep 3, 2023

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27

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help plz

Five workers have been hired to complete a job. If one additional worker is hired, they could complete the job $8$ days earlier. If the job needs to completed $28$ days earlier, how many additional workers should be hired?

Guest Sep 3, 2023

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29

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Three and eight hundred six ten-thousandths in standard form

Three and eight hundred six ten-thousandths in standard form

Guest Sep 3, 2023

Sep 2, 2023

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27

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need help

There is exactly one value of $x$ for which the distance from $(5,6)$ to $(3x-1,ax+5)$ is $4$. If $a \neq 0,$ what is $a$?

Guest Sep 2, 2023

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29

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+10

helppp

how many of the first 10000 positive integers contain the digit pair "43" in that order

tenoutoften Sep 2, 2023

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27

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coordinates

The point $(x,y)$ in the coordinate has a distance of $6$ units from the $x$-axis, a distance of $15$ units from the point $(5,7)$, and a distance of $\sqrt{n}$ from the origin. If both $x$ and $y$ are negative, what is $n$?

Guest Sep 2, 2023

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31

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quadratic

Find the non-zero value of $a$ such that the quadratic equation $ax^2+8x+4=6x-40$ has only one solution.

Guest Sep 2, 2023

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roots

Find the product of all positive integer values of $c$ such that the quadratic equation $3x^2+7x+c=15x-10$ has two real roots.

Guest Sep 2, 2023

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38

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coordinates

Find the area of the region enclosed by the graph of the equation $x^2-14x+3y+70=15+9y-y^2$ that lies below the line $y=x-3$.

Guest Sep 2, 2023

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28

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vsrm

2/5 of Karen's sweets is equal to 1/5 of Mary's sweets. If each of them gives away 128 sweets, Mary will have 114 more sweets than Karen. How many sweets does Mary have left?

Guest Sep 2, 2023

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