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Post New Question
All Questions
^{+0}
136147 Questions
0
6
1
Rearranging log equation
4.31=log(x)
I've looked around on google and youtube for an answer to this type of question, but I haven't found any. Tips anyone?
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Guest
2 hours ago
0
14
0
Help me
Suppose the function $f(x)$ is defined on the domain $\{x_1,x_2,x_3\}$, so that the graph of $y=f(x)$ consists of just three points. Suppose those three points form a triangle of area $32$. The graph of $y = 2f(2x)$ also consists of just three points. What
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Guest
6 hours ago
Jul 21, 2018
+1
12
1
+5
help
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mooman525
10 hours ago
+1
16
1
How would I simplify this rational expression?
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Guest
Jul 21, 2018 6:20:16 PM
-1
19
1
Dice anyone?
What is the total, between 12 and 72, of rolling a dozen dice that will give the greatest probability of occurrence? Secondly, what is that probability?
Thank you very much for help.
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Guest
Jul 21, 2018 4:37:03 PM
0
17
1
+109
HELP ME
Megan is jealous of her older sister's a by b inch Zac Efron poster, so she cuts out a rectangle around his face, which has dimensions (a/2)-2 by (b/3)-5, and steals it. Megan's older sister decides she's over Zac Efron anyways, and uses the rest
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xXxTenTacion
Jul 21, 2018 4:07:53 PM
0
17
2
+357
Inverse Functions
When the expression $-2x^2-20x-53$ is written in the form $a(x+d)^2+e$, where $a$, $d$, and $e$ are constants, then what is the sum $a+d+e$?
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Lightning
Jul 21, 2018 3:42:10 PM
0
17
3
+28
Need help for this too
John draws a regular five pointed star in the sand, and at each of the 5 outward-pointing points and 5 inward-pointing points he places one of ten different sea shells. How many ways can he place the shells, if reflections and rotations of an arrangement
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Memes4Life132
Jul 21, 2018 2:35:41 PM
0
20
3
+28
I need help fast
In the local frisbee league, teams have 7 members and each of the 4 teams takes turns hosting tournaments. At each tournament, each team selects two members of that team to be on the tournament committee, except the host team, which selects three members.
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Memes4Life132
Jul 21, 2018 2:34:57 PM
0
19
1
+357
Inverse Functions
Let f(x)=3x+4 and g(x)=2x-3. If h(x)=f(g(x)), then what is the inverse of h(x)?
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Lightning
Jul 21, 2018 1:47:56 PM
0
12
1
+357
Domain and Range
Suppose the function f(x) is defined explicitly by the table This function is defined only for the values of x listed in the table. Suppose g(x) is defined as f(x)-x for all numbers x in the domain of f. How many
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Lightning
Jul 21, 2018 1:47:02 PM
0
15
1
+357
Functional Operations
Define as . If , what is the value of ?
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Lightning
Jul 21, 2018 1:45:36 PM
0
13
1
+357
help
Let $f(x)=3x+4$ and $g(x)=2x-3$. If $h(x)=f(g(x))$, then what is the inverse of $h(x)$?
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Lightning
Jul 21, 2018 1:39:40 PM
+1
22
3
+96
Set theory and counting and probability
How many distinct subsets of the set S={1,8,9,39,52,91} have odd sums?
How many distinct subsets of the set S={1,8,9,39,52,91} have three-digit sums?
my casework yeilds incorrect answers of 33 and 52 respectively....hints
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Max0815
Jul 21, 2018
-1
22
5
+43
Help fast!
1.How many distinct subsets of the set S=1,8,9,39,52,91 have odd sums? (As an example, 1,8,52 is one such subset, because 1+8+52 equals 61, which is odd.)
2.How many distinct subsets of the set S=1,8,9,39,52,91 have three-digit
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lololololololololll
Jul 21, 2018
Jul 20, 2018
+1
22
2
+28
Last question, running late please help
Dr. Math's four-digit house number ABCD contains no zeroes and can be split into two different two-digit primes ``AB'' and ``CD'' where the digits A, B, C and D are not necessarily distinct. If each of the two-digit primes is less than 40, how many such
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Memes4Life132
Jul 20, 2018
+1
24
6
+28
Need help, thank you for answering
John draws a regular five pointed star in the sand, and at each of the 5 outward-pointing points and 5 inward-pointing points he places one of ten different sea shells. How many ways can he place the shells, if reflections and rotations of an arrangement
read more ..
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Memes4Life132
Jul 20, 2018
+1
24
2
+28
Need help. Please reply fast, thank you
In the local frisbee league, teams have 7 members and each of the 4 teams takes turns hosting tournaments. At each tournament, each team selects two members of that team to be on the tournament committee, except the host team, which selects three members.
read more ..
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Memes4Life132
Jul 20, 2018
0
30
2
I neeeddd HALP!
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Guest
Jul 20, 2018
+1
25
1
+51
Some help with expected value...
Two jokers are added to a 52 card deck and the entire stack of 54 cards is shuffled randomly. What is the expected number of cards that will be strictly between the two jokers?
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MathCuber
Jul 20, 2018
0
23
1
how would i solve this radical equation?
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Guest
Jul 20, 2018
0
22
1
Help with functions
Define $g$ by $g(x)=5x-4$. If $g(x)=f^{-1}(x)-3$ and $f^{-1}(x)$ is the inverse of the function $f(x)=ax+b$, find $5a+5b$.
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Guest
Jul 20, 2018
0
28
2
Suppose that a,b, and c are positive integers satisfying (a+b+c)^3 - a^3 - b^3 - c^3 = 150. Find a+b+c.
Suppose that a,b, and c are positive integers satisfying (a+b+c)^3 - a^3 - b^3 - c^3 = 150. Find a+b+c.
heureka
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Guest
Jul 20, 2018
Jul 19, 2018
0
27
2
Find the last 2 digits of 18^(37)
Find the last 2 digits of 18^(37)
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Guest
Jul 19, 2018
+1
26
1
+5
Suppose f is a polynomial such that f(0) = 47, f(1) = 32, f(2) = -13, and f(3)=16. What is the sum of the coefficients of f? Please explain.
Suppose f is a polynomial such that f(0) = 47, f(1) = 32, f(2) = -13, and f(3)=16. What is the sum of the coefficients of f? Please explain.
Alan
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hellospeedmind
Jul 19, 2018
Jul 18, 2018
0
39
1
Finding the exact perimeter of a square inscribed in a circle?
Here's the problem:
I already solved the answer for 15.a) which is m, what I need help is with part b.
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Guest
Jul 18, 2018
0
29
3
???help please
Six 6-sided dice are rolled. What is the probability that three of the dice show prime numbers and the rest show composite numbers?
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Guest
Jul 18, 2018
0
23
0
help
how to delete a widget?
Guest
Jul 18, 2018
0
24
2
help please
In this problem, a and b are positive integers. When a is written in base 9, its last digit is 5. When b is written in base 6, its last two digits are 53. When a-b is written in base 3, what are its last two digits? Assume a-b is
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Guest
Jul 18, 2018
0
26
0
What is the sum of all integers x that -5 <= x/π <= 10 satisfy ?
1. What is the sum of all integers that satisfy ?
2. Find all real numbers such that . Give your answer as an interval.
Thanks!
Guest
Jul 18, 2018
0
25
1
Please help me
Define $g$ by $g(x)=5x-4$. If $g(x)=f^{-1}(x)-3$ and $f^{-1}(x)$ is the inverse of the function $f(x)=ax+b$, find $5a+5b$.
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Guest
Jul 18, 2018
0
43
2
More dice.....
10 fair six-sided dice are rolled. What is the probability of getting AT LEAST 5 threes? I thank you for any help.
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Guest
Jul 18, 2018
0
52
7
help please
How many ways are there to answer a 10-question true/false test, where at least 3 of the questions have been answered with a false?
I got 14 but that is incorrect.
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Guest
Jul 18, 2018
Jul 17, 2018
0
43
6
Conic Question
Circle gamma intersects the hyperbola y=1/x at (1,1), (3, 1/3) and two other points. What is the product of the y coordinates of the other two points?
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Guest
Jul 17, 2018
0
34
3
2 functuon questions
1. Let $r(\theta) = \frac{1}{1-\theta}$. What is $r(r(r(r(r(r(30)))))$ (where $r$ is applied $6$ times)?
2. If $f(a) = \frac{1}{1-a}$, find the product $f^{-1}(a) \times a \times f(a)$. (Assume $a \neq 0$ and $a \neq 1$.)
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Guest
Jul 17, 2018
0
65
1
can someone please help please. Complete the similarity statement for the two polygons shown. Enter your answer in the box. ABCD∼
Complete the similarity statement for the two polygons shown.
Enter your answer in the box.
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Guest
Jul 17, 2018
0
37
1
Does anyone know how to solve this?
The function f satisfies f(sqrt x+1)=1/x. For all x is greater than or equal to -1, x is not equal to 0. What is f(2)?
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Guest
Jul 17, 2018
0
30
1
How do you solve this problem?
Let f be a function such that f(x+y)=x+f(y) for any two real numbers x and y. If f(0)=2, then what is f(2012)?
Alan
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Guest
Jul 17, 2018
0
27
1
Allen and Ben.
Allen and Ben are painting a fence. The ratio of the amount of work Allen does to the amount of work Ben does is . If the fence requires a total of square feet to be painted, how many square feet does Ben paint?
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Guest
Jul 17, 2018
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