12/22/16

find the value
tan(2Π/5)-tan(Π/15)-3½tan(2Π/5)tan(Π/15)
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12/21/16

y=3 tan x/4
I neend help finding the asystoptote and solving the problem  I have pre calculus
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12/19/16

Cartesian equation for x=t^2+1 y=t^3+t?
Could anyone help me transform these parametric equations into Cartesian ones? I cant seem to get the right answer as the book 
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12/18/16

Differentiation
Differentiate the function : y = (6 + 4x)2
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12/18/16

if p(att,2at),q(a/tt, -2a/t) and s( a,0) be any three points, show that 1/sp+ 1/ sq is independent of t
It is a question of coordinate geometry Here tt means t SQUARE
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12/17/16

Indicated variable
x= square root symbol 10gA/r    solve or A
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12/17/16

Perform the addition or subtraction.
x/1−x^3 − x /1+x+x^2 x 1−x3 − x 1+x+x2  
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12/17/16

Trig Equation
Solve the trig equation -2sin2x=7cosx+2 for 0≤x<π (all angles are in radians)
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12/16/16

help solving this word problem
i need help to solve this word problem; "an airplane can travel 220 miles with the wind speed in the same amount of time it can travel 175 miles against the wind. if the speed of the plane in till... more
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12/15/16

Find a unit vector that points in the opposite direction as v.
Find a unit vector that points in the opposite direction as v.   Let .v=-3(pi 2)i-4(pi 2)j   A. u= (3/5)i+(4/5)j B. u= -(3/5)i-(4/5)j C. u= -(5/3)i-(5/4)j D. u= (5/3)i+(5/4)j  
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12/14/16

Find the value V of the Riemann sum . I have other questions like this I need a full example to help with the others.
Find the value V of the Riemann sum V = n ∑ k = 1 f ( c k ) Δ x k for the function x^2+3 using the partition{1,2,4,7}.(the n is above the sum the k is bellow the sum)
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12/14/16

Trig Identity
Prove sin4x = 4 (sin x-2 sin^3 x)/secx   I can't seem to solve this! Halp!!!
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12/14/16

Maribel is building a rectangular pen for her two dogs. She has 180 feet of fencing. She wants put fencing down middle to split the large rectangle in two
What are the dimensions and area of the largest pen area she can use to accommodate both dogs?
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12/13/16

Find dy/dx if. y=u^2cos u and u=ax^2
Find dy/dx if.      y=u^2cos and u=ax^2
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12/12/16

how do you convert whole numbers to percents?
how do you convert whole numbers to percent's?
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12/12/16

find the answer to this problem
Two planes start from Los Angeles International Airport and fly in opposite directions. The second plane starts 12 hour after the first plane, but its speed is 100 kilometers per hour faster. Find... more
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12/11/16

Owen shot 2 under par while his friend Nathan shot 3 over par. By how many shot was Owen's score better than Nathan's?
I need to know the answer for my exam tomorrow!
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12/11/16

Trigonometry question?
Suppose P(-5/6,y) is a point on the unit circle in the third quadrant. let θ be the radian measure of the angle in standard position with P on the terminal side, so that θ is the circular... more
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12/11/16

A quadratic function passes on the coordinates (0,7) ; (1,17) ; (2,31) and (3, 49), and the symmetry axis is -2. I need to find the a!
My answer booklet says the answer is 4/2 (or 1/2), but I don't understand why it's not 4/1. Thank you in advance!
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12/11/16

How fast were they traveling?
A group of people departs at 11:00AM. They travel 3.5 miles and reach their destination at1:00PM. How fast were they traveling?
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12/11/16

A doorway is 2.0m high and 1.0m Wide. A square piece of plywood has side length 2.2m. Can it fit through
I been trying to get this but can't. Plz solve in numbers the sentence 
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12/11/16

The equation defines a one-to-one function f. f(x) = (x + 5)^3 Determine f −1.
The equation defines a one-to-one function f.f(x) = (x + 5)^3Determine f −1.   Verify that f ○ f −1 and f −1 ○ f are both the identity function.(f ○ f −1)(x) = f(f −1(x))   Please show steps
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12/11/16

A partial solution set is given for the polynomial equation. Find the complete solution set. 2x^3 − 5x^2 − 28x + 15 = 0; {1/ 2}
2x^3 − 5x^2 − 28x + 15 = 0; {1/ 2}   Please show every step
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Cal

12/11/16

Show that cx^3 is a family of solutions ( differential equations)
Consider the differential equation xy'-3y=0    1) Show that cx^3 is a family of solutions.  2) Find the particular solution that satisfies y(-3)=2 
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Cal

12/11/16

Verifying solutions to differential equations
y"-2y'+5y=0 , y=exsin2x
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