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All Questions
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230576 Questions
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273
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+248
What is the range of the function$$f(x) = \frac{1}{1-x}~?$$Express your answer in interval notation.
What is the range of the function$$f(x) = \frac{1}{1-x}~?$$Express your answer in interval notation.
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Blizzardshine
Aug 3, 2022
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126
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help needed
The circle centered at (2,-1) and with radius 4 intersects the circle centered at (2,8) and with radius sqrt(14) at two points A and B. Find AB^2.
Guest
Aug 3, 2022
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128
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help trig
In right triangle ABC, we have AB = 10, BC = 20, and angle ABC = 90. If M is on AC such that BM is a median of triangle ABC, then what is cos ABM?
Guest
Aug 3, 2022
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238
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+248
If $f(x) = x^4 + x^2 + 5x$, evaluate $f(5) - f(-5)$.
If $f(x) = x^4 + x^2 + 5x$, evaluate $f(5) - f(-5)$.
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Blizzardshine
Aug 3, 2022
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205
2
+248
domain of a function
What is the domain of the function$$\ell(y) = \frac{1}{(y-2)+(y-8)}~?$$Express your answer in interval notation.
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Blizzardshine
Aug 3, 2022
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209
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trapezoid
The trapezoid shown has a height of length 12 cm, a base of length 16 cm, and an area of 180 cm^2. What is the perimeter of the trapezoid?
read more ..
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Guest
Aug 3, 2022
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226
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+248
function problem
How many real numbers are not in the domain of the function$$f(x) = \frac{1}{x-64} + \frac{1}{x^2-64} + \frac{1}{x^3-64}~?$$
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Blizzardshine
Aug 3, 2022
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202
1
trig question
In triangle XYZ, Z = 90, cos Y = 7/29, and XY = 28. What is tan X?
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Guest
Aug 3, 2022
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128
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trig question
In right triangle BCD with D = 90, we have BC = 9 and BD = 5. Find sin B.
Guest
Aug 3, 2022
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265
1
+248
The functions $f(x) = x^2-2x + m$ and $g(x) = x^2-2x + 4m$ are evaluated when $x = 4$. What is the value of $m$ if $2f(4) = g(4)$?
The functions $f(x) = x^2-2x + m$ and $g(x) = x^2-2x + 4m$ are evaluated when $x = 4$. What is the value of $m$ if $2f(4) = g(4)$?
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Blizzardshine
Aug 3, 2022
+1
336
8
Account Help
Hey, when I try to log into my account it says it doesne exist. It existed a week ago....
What happened?
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Guest
Aug 3, 2022
+1
202
1
A question
How advanced are the questions that are allowed to be asked?
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Guest
Aug 3, 2022
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193
1
Algebra
Find all solutions to (x + 4)/(x + 5) = (x - 5)/(2x) + 7/(2x).
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Guest
Aug 3, 2022
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203
1
Sum
Compute 1 - 2 + 3 - 4 +... + 2005 - 2006 + 2007 - 2008 + 2009 - 2010.
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Guest
Aug 3, 2022
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130
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counting
How many ways are there to put 5 balls in 2 boxes if the balls are distinguishable and the boxes are distinguishable?
Guest
Aug 3, 2022
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274
3
help angle bisectors
The sides of triangle PQR are tangent to a circle with center C as shown. Given that angle PQR = 68 degrees and angle QRC = 35 degrees, find angle QPR, in degrees.
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Guest
Aug 3, 2022
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225
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+179
Angle bisectors AX and BY of triangle ABC meet at point I. Find angle C in degrees, if angle AIB= 106 degrees.
Angle bisectors AX and BY of triangle ABC meet at point I. Find angle C in degrees, if angle AIB= 106 degrees.
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waterlili
Aug 3, 2022
+5
240
8
+179
In triangle ABC let the angle bisectors be BY and CZ. Given AB=8, AY=6, and CY=3, find BC.
In triangle ABC let the angle bisectors be BY and CZ. Given AB=8, AY=6, and CY=3, find BC.
Related question:
In triangle ABC let the angle bisectors be BY and CZ. Given AB=8, AY=6, and CY=3, find
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waterlili
Aug 3, 2022
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210
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geometric series
Find all r for which the infinite geometric series 2 + r + r/2 + r^2/4 + ... is defined. Enter all possible values of r, as an interval.
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Guest
Aug 3, 2022
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139
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In triangle ABC let the angle bisectors be BY and CZ.
In triangle ABC let the angle bisectors be BY and CZ. Given AB=8, AY=6, and CY=3, find CZ.
Guest
Aug 3, 2022
0
248
1
In triangle ABC let the angle bisectors be BY and CZ.
In triangle ABC let the angle bisectors be BY and CZ. Given AB=8, AY=6, and CY=3, find BY.
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Guest
Aug 3, 2022
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192
1
geometric series
Evaluate the infinite geometric series: 3/2 + 2/3 + 8/27 + 32/243 + ...
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Guest
Aug 3, 2022
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194
1
Consider the function f(x) = x^2 +2sqrt(x). Evaluate 2f(2) - f(8)
Consider the function f(x) = x^2 +2sqrt(x). Evaluate 2f(2) - f(8)
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Guest
Aug 3, 2022
0
201
2
In triangle ABC let the angle bisectors be BY and CZ. Given AB=8, AY=6, and CY=3, find BC.
In triangle ABC let the angle bisectors be BY and CZ. Given AB=8, AY=6, and CY=3, find BC.
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Guest
Aug 3, 2022
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