10/13/18

One of the angles formed by two intersecting lines is 30°. What is the measure of the other three angles?
Can someone answer this? It stumped me
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10/12/18

If xsec@=1-ytan@ and x^2 sec^2@=5+y^2tan^2@ then x^2(y^2+4)/y^2=
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10/12/18

Differentiation Problem
If f and g are differentiable functions for all real values of x such that f(1) = 4, g(1) = 3, f ' (3) = -5, f ' (1) = -4, g ' (1) = -3, g ' (3) = 2, then find h ' (1) if h(x) = f(x) / g(x).
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10/12/18

I need help with this question

For a 35mm camera the equation 1/f=1/di+1/do represents the focal length (f) of the lens that is needed to produce a clear photograph. The distance from the lens to the film di mist be adjusted... more
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10/11/18

How to solve linear equations using the matrix method 3x-5y=7 -x+y=-1
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10/11/18

Holly can clean the room in 8 hours. Nathan can cleanup the same room in only 2 hours. How long will it take then to clean the room together? Round to the tenths place
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10/11/18

Trigonometric Elimination
Eliminate  θ from the pair of equations:1) x= sin θ + cos θ and y= sin θ - cos θAnswer:x^2 + y^2 = 2 (Please show working out)
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10/10/18

Write an equation of the line that passes through (−3,3) and is perpendicular to the line 2y=8x−6. How would I do that?
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10/10/18

HELPPPPPPPPPPPPPPPPPPPPpp
For what value of x is the slope of the tangent line for the function f(x)=x^2−3x+6 equal to 1?
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10/09/18

If (1)/(x)+(1)/(y)-: (1)/(x)-(1)/(y)
If (1)/(x)+(1)/(y)-: (1)/(x)-(1)/(y) = 2018, what is the value of x+y/x-y
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10/09/18

given x=3sin(2t+5), how do you find the maximum acceleration of the particle given it is travelling in simple harmonic motion.
Maths question from 1997 hsc paper Q2 b ii)
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10/08/18

how to use trig function
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 70 degrees occurs at 4 PM and the average temperature for the day is 60 degrees.... more
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10/08/18

A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat. If
A boat is pulled into a dock by a rope attached to the bow of the boat and passing through a pulley on the dock that is 1 m higher than the bow of the boat. If the rope is pulled in at a rate of 1... more
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10/08/18

x^2+y^2=4. find the 1st, 2nd, 3rd derivative and which quadrants make the 3rd derivative positive
 im struggling with finding the 3rd derivative
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10/08/18

how do you simplify and factor (2a-b)^2-4
We are just learning basic factoring.  
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10/08/18

consider the function f(x)=4x-5. what is the domain value that corresponds to an output of f(x)=11
i dont know how to find domain
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10/08/18

5/(x-3) + 2/(x+1) = 3 Simplified to 3x^2-13x-8=0
5/(x-3) + 2/(x+1)=3.   Simplified to 3x2 -13x-8=0
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10/08/18

Optimization
The sum of a number and the cube of a second number is 32. Find the maximum product of the numbers. 
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10/08/18

On an exam whose scores followed a normal distribution, a student's z-score was −1.
What percentage of students scored better than he did? (Use the 68-95-99.7 Rule.)
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10/08/18

Write an equation of a parabola in standard form using a focus and directrix.
A parabola has a focus of (3,6) and the directrix is y=2. What is the equation for the parabola in standard form?
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10/08/18

How to find the common ratio of a geometric sequence, if given only the first term as 200 and the sum of the first four terms as 324.8?
This is a problem our NEVER went over.
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10/08/18

In the XY plane the graph of the function q is a parabola. The
The graph intersects the x axis at (-1,0) and (r,0). If the vertex of q occurs at the point (2,4). What is the value of r?
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10/07/18

How can I Find the equation of the line passing through(2,-4) and perpendicular to y=-3
Please provide me with the details on how to proceed with this problem
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10/07/18

A box with a square base and open top must have a volume of 32,000 cm^2. Find the dimensions of the box that minimize the amount of material used.
optimization problems or kinda problem solving. thank you in advance
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10/06/18

express the area of the circle.
An oil slick is expanding as a circle. The radius of the circle is increasing at the rate of 22 meters per day. Express the area of the circle as a function of d, the number of days elapsed.
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