04/21/17

is there an integer value of m such that the solution to (2m-1)x^2 - (2m + 1)x + 1 = 0 are also integers?
there are no other details about my question
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04/20/17

Ratio of gravitational potential between surface and centre of a solid sphere is
A.-2/3 B.-3/2 C.2/3 D.3/2  
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04/20/17

It's linear equations by elimination
4x-2y=-18 3x+2y=11
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04/20/17

Complex number division
Calculate the complex number division (5-3i)÷(4+3i) and write your answer in standard complex number form a+bi.
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04/14/17

Find an equation for the plane that passes through (2,4,-1) and contains the line of intersection of the planes x-y-4z=2 and -2x+y+2z=3
I have no idea what Im doing wrong but I keep getting the wrong answer. What I did first was find two points. So I set z=0 and x=0 . Then I created two vectors and did the cross product for ABxAC... more
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04/14/17

Find all solutions in the interval [0, 360]
Find all solutions in the interval [0, 360°]. Sin(4t)=(√3)/2
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04/10/17

is it possible for a number to be both a factor and a multiple of 12
a factor of 12 is 3 and a multiple of 12 is 24 so is it possible for a number to be both a factor and a multiple of 12  
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04/10/17

Find the set of values of k for which f(x)= 3x^2 -5x -k is greater than 1 for all real x
This is a year 11 methods question about applying function notation. Could someones please explain the question and then give me a working out for it?
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Gpa

03/31/17

I got a 89 final grade my gpa is 3.33 what will it be now after the grade applied
I got a 89 final grade my gpa is 3.33 what will it be now after th
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03/26/17

Suppose F = <-y ,x ,z> and S is the part of sphere x^2 + y^2 + z^2 = 25 below the plane z=4, oriented with the outward-pointing normal
(The normal at (5,0,0) is i). Compute the ∫∫ curl F . dS by using Stoke's Theorem. I already found the answer by using line integral but I want to know the answer by using the surface integral.... more
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03/22/17

angle physics question, please help :)
Light traveling from a transparent material with index of refraction 1.25 strikes a surface with an angle 72 degrees relative to a normal line from that surface. When the light enters the second... more
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03/17/17

Consider f(x)=sqrt(x-1). Find the value of x in the interval [1,3] that satisfies the mean value theorem
I need help ASAP! Please!
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03/13/17

what is 1, 9, 19, 31, 45, 61, in a sequence
i need help on ixl thats why im asking.
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03/13/17

Write the equation for a parabola with a focus at (7,2) and a directrix at y=-2
equation of a parabola from focus and directrix 
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03/12/17

Vector Fields
For each vector field in R4 given below, either find a function for which it is the gradient, or explain why no such function exists. Variables are in the order x, y, z, w. a.(siny + wcosx + 1)e1 +... more
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03/10/17

Find area between two curves.
x3/4 + y3/4 = 1    x+y=1 
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03/08/17

If the number of square centimeters in the surface area of a sphere is equal to the number of cubic centimeters in its volme find the diameter of the sphere
squre cms  in surface area of a sphere is equal to the number of cubic cms in its volume find the diameter of sphere
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03/08/17

find the quadratic equation that fits the following set of data points (5,-238),(-3,-110)(4,152)
I have tried doing this problem over 10 times. I can not figure it out :( please help
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03/08/17

Which of the following is not a root of z^3 = 1 - sqrt[3] to the nearest hundredth?
I have four options:   A.) -0.22 + 1.24i B.) -0.97 - 0.81i C.) 1.02 - 0.65i D.) 1.18 - 0.43i   I really need help figuring out how to attack this problem. I have already converted it to... more
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03/06/17

Find the slope of the tangent to the curve y^2=((x^2)/(xy-28)) at (8,4)
the problem is stated as above. I'm just not sure where to start. 
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03/06/17

log equation :)
log4(x2+3x)-log4(x+5)=1
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03/06/17

Solve 4x^2+1/x^2+1=0 giving values of x in form k(2^1/2) where k is a constant.
Find the value of x in the form of k root(2) where k is a constant. Please help, what is the easies way to do this. Sonce, i havent studied complex numbers and imaginary number. 
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03/05/17

Find the shortest distance between a point and a line in 3 dimensions
Find the shortest distance between a point and a line in 3 dimensions:A) Let P = (x0, y0, z0) and define the line, L, not containing P by x = x1 + a t , y = y1 + b t, z = z1 + c t, with... more
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02/28/17

I have X dice with 6 sides each & want to simulate how many 6's I get by using ONE random number 0 to Y
With 6 sides on, say, 3 dice, I have 216 combinations.   ** Three 6's, 1 possibility: 666 ** Two 6's, 15 possibilities: 665 664 663 662 661 656 655... etc ** One 6: 75 possibilities: 611 612... more
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02/28/17

Find the volume V of the described solid S
The base of S is an elliptical region with boundary curve 4x^2 + 25y^2 = 100. Cross-sections perpendicular to the x-axis are isosceles right triangles with hypotenuse in the base.
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