12/11/19

Trig question HELP!!!
A person is standing on a cliff that is 200ft above a body of water. The person looks down at an angle of depression of 35o at a sailboat. Then the person looks at a yacht that is further out at an... more
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12/11/19

The area of a rectangle with length 6 cm and width 7 cm is 42 square centimeters. Using an inverse variation, what is the length of a rectangle with the same area and width 4cm?
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12/11/19

A(-2,-2) and B(5,7) are the endpoints of line AB. point C lies on line AB and is 1/3 of the way from B to A. what is the y-coordinate of point C
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12/10/19

Let, (-3,-8) be a point on the terminal side of θ . Find the exact values of cos θ , sec θ , and cot θ .
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12/10/19

Trigonometry equation
Find tan(x-y) if sin(x) = 1/5, cos(y) = 2/5, tan(x) < 0 tan(y) > 0
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12/09/19

Find the area between f(x)=cosx and g(x)=-sinx on [0,pi/2]
I got these wavy curves near the x-axis but my trig is weak. I know I need to stay in the 1st quadrant since it's on [0,pi/2]. I can't find any videos or in step details online so far. Any help?
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12/09/19

Find the average value of y=sinx on [0,pi]
I have the equation 1/pi ∫ [0,pi]sinx dy. Am i setting up this equation correctly?
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12/09/19

Find the average value of f(x)=x^3 on [-1,1]
I understand that this is the formula 1/(b-a)∫ f(x) dx but im having trouble plugging in the values correctly. Any light on the subject would be much appreciated!
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12/09/19

Consider the Function
Consider the function f(x)=x3-9x2.a. Find a formula for f'(x).b. Use your answer to part (a) to find any critical points of f.c. Use either the first or second derivative test to classify any... more
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12/08/19

Air is being pumped into a spherical balloon at a rate of 10 cm^3/sec Find the rate of change of the radius when the radius is 10cm.
Air is being pumped into a spherical balloon at a rate of 10 cm^3/sec Find the rate of change of the radius when the radius is 10cm.
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12/08/19

Find the points of intersection of the line y = x+1 with the polynomial y= 3x^3 -2x^2 - 6x-1
Directions:The problem needs to be solved analytically - although the calculator may be used to identify roots prior to long division
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12/08/19

Find the volume of the solid generated by revolving y=√x from x=0 to x=1 about the x-axis
let me guess. washer method. setting up these equation is always my struggle. Once i get to the equation aspect i rule. Someone please spell this one out for me my fellow masterminds?
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12/08/19

If I have a cusp on a graph of f prime (at x=3), does that mean I will have an inflection point on the graph of f (at x=3)?

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12/07/19

Calculus. Question
A ladder 5 ft long rests against a vertical wall. If the bottom of the ladder slides away from the wall at a rate of 1ft/sec, how fast. Is the angle between the ladder and the ground changing when... more
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12/06/19

If cos(t)= -7/8 where pi <t< 3pi/2, find the values of the following trigonometric functions.

cos(2t) sin(2t) cos(t/2) sin(t/2)
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12/06/19

Bridge To Algebra 2
The school that Mike goes to is selling tickets to a play. On the first day of ticket sales the school sold 2 adult tickets and 7 child tickets for a total of $107. The school took in $29 on the... more
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12/06/19

Algebra Problem:
Simplify: (3√12√12)(A) 12(2/3)(B) 2(32/3)(C) 2√3(D) (2/3√12)(E) none of theseFor this I got (C) 2√3, is this correct?
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12/06/19

Trigonometric Derivatives

Differentiate y = csc(x) - cot(x).Options: -csc(x) cot(x) + csc2(x) sec(x) tan(x) + csc2(x) -csc(x) cot(x) - cot2(x) 0
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12/06/19

a. How many trees should be planted per acre to maximize the total yield?
1.   In a single growing season at the Smith Family Orchard, the average yield per apple tree is 150 apples when the number of trees per acre is 100. For each additional tree over 100,... more
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12/05/19

Fireworks are being shot off of a 53.9 meter high roof of a building with a velocity of 49 meters per second.

When will the embers of the firework reach the ground? When will the fireworks reach a maximum height, and what will the maximum height be?
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12/05/19

Find the distance from p to l. Line l contains points (6,5) and (2,3). Point p has coordinates (2,6).
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12/05/19

Area with rectangle
A 10x12 inch painting has a frame of uniform width. Whats the width of the frame if the entire piece, including the frame, covers an area of 224in?
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12/05/19

Applications of Limits
A ball is thrown vertically upward from the top of a 100-foot tower, with an initial velocity of 20 ft/sec. Its position function is s(t) = -16t2 + 20t + 100. What is its velocity in ft/sec when t... more
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12/05/19

In isosceles triangle ACE the vertex angle, C, is 24 mode than twice the sum of the base angles. Find the measure of the vertex angle
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12/05/19

write the equation of the line that is perpendicular to x=5
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