10/26/18

sinxcosx/cos^2x-sin^2x=tanx/1-tan^2x
Please answer as soon as possible. Thanks!!
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10/25/18

Find dy/dx by using implicit differentiation: x^5+8x^3y^2=20
Find dy/dx by using implicit differentiation: x5+8x3y2=20I got dy/dx= -5x4-8x3-24x2y2 / 2y.I was wondering if that was right
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10/24/18

a line on the coordinate plane passes through the points (7,-5)and (3,11) A line that is perpendicular to the first line passes through the points (-3,-9) and (5,n). find the value of n
:V a line on the coordinate plane passes through the points (7,-5)and (3,11) A line that is perpendicular to the first line passes through the points (-3,-9) and (5,n). find the value of n \please... more
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10/20/18

Find a cubic function y = ax3 + bx2 + cx + d whose graph has horizontal tangents at the points (−2, 8) and (2, 2)
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10/18/18

Find the measure of the longer diagonal. Round to 2 decimal places, if necessary.
A parallelogram has sides of length 20 units and 11 units. The shorter diagonal is 13 units. Find the measure of the longer diagonal. Round to 2 decimal places, if necessary. c
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10/16/18

Why aren't all functions continuous on their domain? Give example
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10/15/18

Minimizing the area of a triangle
Look at the curve x^2 + 3y^2 = 1. In the first quadrant draw different tangent lines to points of the curve. These tangent lines form triangles with x- and y- axes. For which point on the curve is... more
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10/14/18

What is the area of triangle CEF?
Right angled, isosceles triangle ABC has A􏰀 = 90◦with E the midpoint of AC. F is a point on BCsuch that FE is perpendicular to EB. AB =AC = 40 √3. What is the area of triangle CEF?please answer... more
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10/12/18

Express as a product
cos(a)+2cos(7a)+cos(13a)I know the formulas but not how to apply them
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10/10/18

Use implicit differentiation to find an equation of the tangent line to the curve at the given point. y sin(16x) = x cos(2y), (π/2, π/4)
Use implicit differentiation to find an equation of the tangent line to the curve at the given point.y sin(16x) = x cos(2y),    (π /2, π /4)
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10/10/18

If xy + 8ey = 8e, find the value of y'' at the point where x = 0.
If xy + 8ey = 8e, find the value of y'' at the point where x = 0.
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10/02/18

calculus- continuous limits
f(x)=9x-1 for x<-1      =ax+b for -1≤x≤0.5      =5x-1 for x>0.5 what are the values of a and b to make the function continuous
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09/24/18

How to simplify (x+y)^6
A question
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09/24/18

Horizontal shrink / stretch
Write the formula for f(x), if the graph of f can be obtained from the graph of y = g(x) by shrink horizontally by a factor of 5 then shift left 3 units The equation should be  f(x) = g(5(x+3))... more
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09/19/18

Evaluate and simplify
Given g(x) = 3/(x+2), evaluate and simplify: g(5+h)-g(5) --------------  =  ????         h    The answer should be -3/(49+7h).  Please show me the steps to get this answer 
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09/14/18

Calculus Question
A circular swimming pool has a diameter of 10 m. The circular side of the pool is 3 m high, and the depth of the water is 1.5 m?The acceleration due to gravity is 9.8m/s^2 and the density of water... more
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09/11/18

Given the indicated parts of triangle ABC with γ = 90°, approximate the remaining parts. (Round your answers to the nearest tenth.) a = 0.31, c = 0.79
In step please. need to find side "b" 
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09/11/18

Solve the system by using the technique of ‘elimination’ 7x+6y=2 -28x-24y=-8
A An infinite number of solutions exist. B x=4/7 y=-1/3   C X=1/7 y=1/6    D x=0 y=0
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09/10/18

In the right triangle ABC, CD is the altitude to the hypotenuse AB and m<ABC=30 degrees. Find AD, if BD=54 cm
 Draw a diagram and solve. Please.
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09/09/18

Complete this number sequence 0,3,8,15,24
Help me this is too hard
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09/09/18

Word Problem
there are three base stations that can send and receive signals from your mobile phone P. suppose that in a rectangular coordinate system, the locations of three base stations A,B and C are (0,0)... more
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09/03/18

What is the limit as Δχ approaches 0 for the equation f(x) = 1/√x with the difference quotient applied?,
  lim       1              — Δχ→0    √χ
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08/28/18

Express the following in summation notation
a. x1+x2+x3+x4+x5   b. x1+2x2+3x3+4x4+5x5  
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08/27/18

. Use the derivative f prime to determine if the function is decreasing over [1, ∞) : f(x) =( e ^1/x )/x
Please explain thoroughly. I know you have to find derivative then critical points
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08/26/18

Find the bearing of Town C from Town A
a plane flies from town a 1200km on a bearing of 225 degrees to down B. It then flies 900km on a bearing of 135 Degrees to town C. Find the bearing of town C From A
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