04/23/17

the sum of a number and its reciprocal is 13/6 find the number
in 5 hours a secretory can address 100 envelopes another secretory can address 100 envelopes in 6 hours how long would it take the secretaries working together to address 300 envelopes 
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04/22/17

use newtons method to approximate the indicated root
Use Newton's method to approximate the indicated root of the following equation correct to six decimal places.The root of 2x^3−6x^2+3x+1=0in the interval [2,3].
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04/22/17

The schwarzchild radius of a black hole containing 7.95 x 10 ^ 28 kg is ___ meters
The schwarzchild radius of a black hole containg 7.95 x 10 ^ 28 kg is ___ meters
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04/21/17

Find the absolute max and min values
Find the absolute maximum and absolute minimum values of the functionf(x)=x^3−12x^2−27x+10over each of the indicated intervals.   a) Interval [-2,0] 1. Absolute max= 2. Absolute min=   b)... more
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04/21/17

Find dy/dx in terms of x and y
Find dy/dx in terms of x and y if x^3y−x−3y−10=0. dy/dx=____
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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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