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Post New Question
All Questions
+0
237665 Questions
0
1331
1
If f(x)=x^5-1/1, find f^-1(-31/96).
If f(x)=x^5-1/1, find f^-1(-31/96).
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Guest
Jul 17, 2018
0
784
1
Finding distance using absolute values?
Here's the question & my work:
for #16.a) the tb answer is 6 km & for
read more ..
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Guest
Jul 17, 2018
Jul 16, 2018
0
766
2
Please help with linked question
https://web2.0calc.com/questions/function-help_4
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Guest
Jul 16, 2018
0
970
1
A vertical pole is 15 ft high
A vertical pole is 15 ft high and the length of its shadow is 20 ft. What is the angle of elevation of the sun rounded to the nearest tenth of a degree?
heureka
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Guest
Jul 16, 2018
0
1179
1
+541
help me
Suppose that we have an equation y=ax^2+bx+c whose graph is a parabola with vertex (3,2), vertical axis of symmetry, and contains the point (1,0). What is (a, b, c)?
Melody
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xXxTenTacion
Jul 16, 2018
0
2016
2
Function help!
1. Let $f(x) = Ax - 2B^2$ and $g(x) = Bx$, where $B \neq 0$. If $f(g(1)) = 0$, what is $A$ in terms of $B$?
2. Suppose that $f$ is a function and $f^{-1}$ is the inverse of $f$. If $f(1)=2$, $f(2) = 6$, and $f(3)=5$, then what is $f^{-1}(f^{-1}(6))$?
read more ..
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Guest
Jul 16, 2018
+2
2977
2
+537
Geometry Probability
Rectangle ABCD has center O and AB/AD=k. A point is randomly chosen from the interior of rectangle ABCD. What is the probability that it is closer to O than to any of the four vertices?
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MathCuber
Jul 16, 2018
0
735
1
Factoring this polynomial expression?
The 1st line is the original expression:
and then i ended there because i wasn't sure what to do next.
read more ..
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Guest
Jul 16, 2018
Jul 15, 2018
0
957
3
Two counting problems
1. Three friends: Al, Bill, and Carl, are painting their chests with the word CAVALIERS for a basketball game, with at least two letters painted on each friend’s chest. For example, Al might get “CA”, Bill “VAL”, and Carl “IERS”, or Carl could get “CAVA”
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Guest
Jul 15, 2018
-2
1213
0
+71
circular swimming pool
A park has a circular swimming pool. The diameter of the pool is 19ft. Whatis the distance traveled if you swim around the edge of the pool once? Use π ≈ 3.14.
Mathrules
Jul 15, 2018
0
1072
1
Arithmetic Sequence
If the first term of an arithmetic sequence is 17 and the common difference is 6, what is the first term
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Guest
Jul 15, 2018
0
1697
1
+1246
Help!
Suppose that $f$ is a function and $f^{-1}$ is the inverse of $f$. If $f(3)=4$, $f(5)=1$, and $f(2)=5$, evaluate $f^{-1}\left(f^{-1}(5)+f^{-1}(4)\right)$.
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Lightning
Jul 15, 2018
0
770
1
+279
Please help on this induction question!
Given f(n)=1/(n+1)+1/(n+2)+...+1/(3n+1). When you want to prove the question using the mathematical induction method. For step 2, if n=k, you want to validate when n=k+1, then the relationship between f(k) and f(k+1) will be?
Thank
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yasbib555
Jul 15, 2018
0
824
1
+279
deleted
deleted
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yasbib555
Jul 15, 2018
0
1374
1
+1246
Help!
If $P(x) = 4+2\sqrt{x+2}$ and $G(x) = 4-3x$, then what is the largest constant $a$ such that $P(G(a))$ is defined?
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Lightning
Jul 15, 2018
+2
1358
3
+541
HELP ASAP
Suppose that x,y,z are positive integers satisfying x≤y≤z, and such that the product of all three numbers is twice their sum. What is the sum of all possible values of z?
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xXxTenTacion
Jul 15, 2018
-1
852
1
+1246
Help!
Suppose that $f$ is a function and $f^{-1}$ is the inverse of $f$. If $f(3)=4$, $f(5)=1$, and $f(2)=5$, evaluate $f^{-1}\left(f^{-1}(5)+f^{-1}(4)\right)$.
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Lightning
Jul 15, 2018
-1
809
1
+1246
Help!
If $t(x) = |{-3+2x}|$, then what is $t(t(-4))$?
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Lightning
Jul 15, 2018
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