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Post New Question
All Questions
+0
230625 Questions
0
331
1
Help algebra
Simplify and rationalize the denominator: 1/(1 + 1/(sqrt(3) + 2)).
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Guest
Jul 17, 2021
0
681
1
+24
Consider rhombus ABCD with side length 6:
Consider rhombus ABCD with side length 6:
This is rolled to form a cylinder of volume 27/2 by taping AD to BC:
read more ..
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Trainer
Jul 17, 2021
0
183
0
Domain
What is the domain of the real-valued function
q(x) = sqrt(x)/sqrt(-1 + x^2)?
Express your answer as an interval or as a union of intervals.
Guest
Jul 17, 2021
0
324
1
help coordinates
Points A(0,0), B(6,0), C(6,10) and D(0,10) are vertices of rectangle ABCD, and E is on segment AB at (2,0) . What is the ratio of the area of triangle ADE to the area of quadrilateral ABCD? Express your answer as a common fraction.
read more ..
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Guest
Jul 17, 2021
0
326
1
3d geometry
A sphere is inscribed inside a hemisphere of radius 2. A cube is inscribed in the sphere. What is the volume of this cube?
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Guest
Jul 17, 2021
0
324
0
+24
Help
Could someone please help me with this problem?
hendy
Jul 17, 2021
0
314
0
+68
Help please
Reproduce the angle difference identities for sine and cosine by expressing in rectangular form.
brinlin
Jul 17, 2021
0
322
1
coordinates
The area of rectangle ABCD with vertices A(0, 0), B(0, 4), C(x, 4) and D(x, 0) is 32 square units. If x > 0, what is the value of x?
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Guest
Jul 17, 2021
0
238
1
trapezoid
What is the area of the trapezoid shown? Express your answer in the simplest exact form.
read more ..
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Guest
Jul 17, 2021
0
248
1
help counting
The product of all digits of positive integer M is 105. How many such Ms are there with four digits?
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Guest
Jul 17, 2021
0
329
1
Expand
Expand: 3p^5*q^3*(2pq + 5/(pq) + 1/p + 3/q)
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Guest
Jul 17, 2021
0
206
0
Graphing
If f(x) = (x + 4)/(x^2 + ax + b), and f(x) has two vertical asymptotes at x = 1 and x = 2, find the sum of a and b.
Guest
Jul 17, 2021
0
219
0
Quadratic
The equation y = -16t^2 + 26t + 185 describes the height (in feet) of a ball tossed up in the air at 26 feet per second from a height of 185 feet above the ground. In how many seconds will the ball hit the ground? Express your answer as a decimal rounded
read more ..
Guest
Jul 17, 2021
0
363
2
+68
Having some trouble with this
Show that if w is a primitive root of unity for n = 2m, then is a primitive root of unity.
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brinlin
Jul 17, 2021
0
205
0
Domain
What is the domain of the real-valued function f(x) = (2x - 7)/sqrt(x^2 - 5x + 1)?
Guest
Jul 17, 2021
0
365
2
+68
Need some help with this
Let w be a sixth root of unity. Find all possible values of .
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brinlin
Jul 17, 2021
+1
506
1
+874
Bug with web2.0calc on mobile
As seen, it says there is a response but my phone shows no answer.
m.Imgur.com/jK98Rt
read more ..
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MathProblemSolver101
Jul 17, 2021
Jul 16, 2021
0
402
2
+68
Help Please
Reproduce the angle difference identities for sine and cosine by expressing in rectangular form.
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brinlin
Jul 16, 2021
0
376
2
+68
Help Please
Prove that
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brinlin
Jul 16, 2021
0
396
1
+21
trig & complex numbers
For what positive integers n is a real number?
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echchew
Jul 16, 2021
0
201
0
Polynomials
Find a monic quartic polynomial f(x) with rational coefficients whose roots include x=1-sqrt2 and x=2+sqrt5. Give your answer in expanded form.
Guest
Jul 16, 2021
0
199
0
HELPPPPP
A bunny walks on the x-axis. At some point it makes a jump between two points on the axis according to the equation y = (-1/3)(x-1)(x-7). Plot in the coordinate plane the trajectory of the bunny's jump and find the height of the jump.
read more ..
Guest
Jul 16, 2021
0
337
2
equations
Rewrite the following quadratic functions in the vertex form
y = x^2 - 10x + 16
y = x^2 + 4x + 1
read more ..
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Guest
Jul 16, 2021
-1
344
1
help asap
Solve the following equations:
(√2)*x + 3 = 2x - 1
read more ..
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Guest
Jul 16, 2021
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