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Post New Question
All Questions
+0
230566 Questions
-2
1083
9
Let$$x={4\over{(\sqrt5+1)(\root 4\of5+1)(\root 8\of5+1)(\root {16}\of5+1)}}.$$Find $(x+1)^{48}$.
Let$$x={4\over{(\sqrt5+1)(\root 4\of5+1)(\root 8\of5+1)(\root {16}\of5+1)}}.$$Find $(x+1)^{48}$. I need it kinda quick :) Thanks!!!!!
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Guest
Dec 27, 2020
0
579
4
This is hard
The equation \[\frac{x}{x+1} + \frac{x}{x+2} = kx\]has exactly two complex roots. Find all possible complex values for $k.$ Enter all the possible values, separated by commas.
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Guest
Dec 27, 2020
0
437
2
plz help
Ruan began painting a room at 9:00 AM. Leonardo, who can paint twice as fast as Ruan, started helping Ryan at 9:20 AM, and they worked together until the room was fully painted at 9:40am. What fraction of the room had been painted by 9:30 AM? Express your
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Guest
Dec 27, 2020
0
412
3
CPHILL HELP!!!!
Let the reciprocals of the roots of be and . Evaluate .
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Guest
Dec 27, 2020
0
421
1
base numbers
A palindrome is a number that reads the same forward and backward. What is the smallest 5-digit palindrome in base 2 that can be expressed as a 2-digit palindrome in a different base? Give your response in base 2.
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Guest
Dec 27, 2020
0
594
2
+4
For a certain value of k, the system
For a certain value of k, the system
x + y + 3z &= 10
-4x + 3y + 5z &= 7
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Nishinoya
Dec 27, 2020
0
421
1
solid geo
Two congruent cylinders each have radius 8 inches and height 8 inches. The radius of one cylinder and the height of the other are both increased by the same number of inches. The resulting volumes are equal. How many inches is the increase? Express your
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Guest
Dec 27, 2020
0
412
1
geometry question
In $\triangle ABC,$ $AB=6 $ , $BC = 4$ and $ AC=8.$ A segment parallel to $ \overline{BC}$ and tangent to the incircle of $\triangle ABC$ intersects $\overline{AB}$ at $M$ and $\overline{AC}$ at $N$. Find the length $MN$.
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Guest
Dec 27, 2020
Dec 26, 2020
0
570
2
+197
If anyone needs help with the question: (The harmonic mean of two positive integers is the reciprocal of the arithmetic mean of their recipr
If anyone needs help with this question then I have an answer for you!
we take the harmonic mean formula 2ac/(a+c), we know the harmonic mean is 20, so we write 2ac/(a+c)=20.
Next we take our bottom denominator and take it to the left side of the
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icecreamlover
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icecreamlover
Dec 26, 2020
+2
1733
1
Probability of the game Set. (Search it up if you don't know what it is!)
(a) How many cards are in a complete deck of Set?
(b) How many unique sets are there?
When three cards form a set, we can also count the number of attributes for which all three cards are the same. For example, in the set below,
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Guest
Dec 26, 2020
0
461
5
Multiple values of K
For which values of $k$ does the equation $\frac{x-1}{x-2} = \frac{x-k}{x-6}$ have no solution for $x$? Enter all the possible values of $k,$ separated by commas.
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Guest
Dec 26, 2020
0
392
1
polynomial
The polynomial f(x) has degree 3. If f(-1)=15, f(0)=0, f(1)=-7, and f(2)=0, then what are x-intercepts of the graph f?
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Guest
Dec 26, 2020
0
411
13
1 variable equation
Find all real values of $x$ such that $$\frac{2x^2-3x}{x^2-x} + 5x -11 = \frac{3x^2+5x+2}{x^2-1}.$$Enter all the solutions, separated by commas.
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Guest
Dec 26, 2020
0
260
0
distribution
How many ways are there to divide 4 indistinguishable candies among 3 distinguishable friends
note that all candies must be distributed , and people can recieve 0 candies
Guest
Dec 26, 2020
+1
581
3
+1486
Easy Geometry
Circle O has a radius of 5 cm. The length of a chord AB is 8 cm. Circle Q is tangent to a chord and to the arc AB as well. (See diagram below) If line segment AM is 2 cm, what's the area of a circle Q?
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Dragan
Dec 26, 2020
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350
1
coordinates
I have a map of Iowa on a Cartesian coordinate plane, where one unit represents approximately one minute of travel time. Des Moines is at the origin (0,0). Ames is at (0,30) . Iowa City is at (100,0) . Cedar Rapids is at (100,30) . How much
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Guest
Dec 26, 2020
0
482
2
probability question
Jane and her brother each spin this spinner once. The spinner has five congruent sectors. If the non-negative difference of their numbers is less than 2, Jane wins. Otherwise, her brother wins. What is the probability that Jane wins? Express your answer
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Guest
Dec 26, 2020
0
618
2
HELP ASAP
For what real values of is the square of a binomial?
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Guest
Dec 26, 2020
0
475
3
Realll simple question
Im learning logs right now and Im a bit confused on one of the identies.
Can you please clarify this?
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Guest
Dec 26, 2020
0
714
1
Working 22 hours in the second week of June, Xenia was able to earn $\$$47.60 more than during the first week of June when she worked 15 hou
Working 22 hours in the second week of June, Xenia was able to earn $\$$47.60 more than during the first week of June when she worked 15 hours. If her hourly wage was constant, how many dollars did she earn during the first two weeks of June? Express your
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Guest
Dec 26, 2020
0
430
1
probability
John needs to catch a train. The train arrives randomly some time between 2:00 and 3:00, waits for 15 minutes, and then leaves. If John also arrives randomly between 2:00 and 3:00, what is the probability that the train will be there when John arrives?
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Guest
Dec 26, 2020
0
313
2
help with algebra
BoatsRUs built 7 canoes in January of this year and then each subsequent calendar month they built twice the number of canoes they had built the previous month. How many total canoes were built by BoatsRUs by the end of September of this year?
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Guest
Dec 26, 2020
0
412
1
sequence
The first term of a given sequence is 1, and each successive term is the sum of all the previous terms of the sequence. What is the value of the first term which exceeds 50000?
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Guest
Dec 26, 2020
0
631
2
help me
1/5-2/7+3/5
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Guest
Dec 26, 2020
0
714
1
can i use this calculator
can i use this calculator
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Guest
Dec 26, 2020
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