915 Answered Questions for the topic Pre-Calculus

01/09/21

#### Sketch the graph of the function. (Include two full periods.) Use a graphing utility to verify your result.

y = 1/9 Β cot(xΒ +Β π)A. B. C. D.

01/09/21

#### Use a graph of the function to approximate the solutions of the equation on the interval [β2π, 2π]. (Enter your answers as a comma-separated list. Round your answers to three decimal places.)

sec (x) = -2xΒ =

01/09/21

#### Sketch two periods of y = (1/4)tan((pi x)/4). (Select the correct graph.)

A. B.Β Β Β Β C.D.

12/20/20

#### Use the graph of the function to answer the following.

f(x) = cos(x)Β on the interval [β2π, 2π](a) Find theΒ x-intercepts of the graph ofΒ yΒ =Β f(x).Β (Enter your answers as a comma-separated list.)x =ο»Ώ(b) Find theΒ y-intercepts of the graph...
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Pre Calculus Precalculus

12/15/20

#### Pre-Calc Ferris Wheel Modelling Problem

The Ferris wheel in the following diagram has a radius of 30 feet, and itβs center is 40 feet from the ground, and it makes one revolution every 40 seconds. 1. Write the equation of the height of...
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12/15/20

#### Calculus Challenge Question URGENT!

I need to catch my flight. Iβm at the airport and Iβm running late. I need to make it 1000m to get to my gate. I have two choices. I can either run or take the moving sidewalk. The moving sidewalk...
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12/14/20

#### Trig Equations and Identity

The angle of elevation to the top of a Building in New York is found to be 4 degrees from the ground at a distance of 2 miles from the base of the building. Using this information, find the height...
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12/14/20

#### Trig Equations and identity

A radio tower is located 250 feet from a building. From a window in the building, a person determines that the angle of elevation to the top of the tower isΒ 41Β°Β and that the angle of depression to...
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12/13/20

#### Find the values of the six trigonometric functions of π. (If an answer is undefined, enter UNDEFINED.)

Function Value: cos (π) = -8/17Constraint: π lies in Quadrant IIIsin (π) = cos (π) = tan (π) = csc (π) = sec (π) = cot (π) =

12/13/20

#### The Johnstown Plane is one of the longest, steepest hoists in the world. The railway cars travel a distance of 896.5 ft at an angle of approximately 35.4Β°, to a height of 1693.5 ft above sea level.

(Round your answers to two decimal places.)(a) Find the vertical rise of the inclined plane.______ ft(b) Find the elevation of the lower end of the inclined plane._______ ft(c) The cars move up...
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12/13/20

#### Evaluate the sine, cosine, and tangent of the angle without using a calculator.

-7π/6sin (π) = cos (π) =ο»Ώtan (π) =

12/13/20

#### The point is on the terminal side of an angle in standard position. Determine the exact values of the six trigonometric functions of the angle.

(5,Β β9)sin (π) =cos (π) =tan (π) =csc (π) =sec (π) =cot (π) =

12/13/20

#### Find the reference angle πβ' for the special angle π.

πΒ =Β β305Β°πβ'Β =SketchΒ πΒ in standard position and labelΒ πβ'.
left (a), right (b), down below left (c), down below right (d)

12/13/20

#### A six-foot person walks from the base of a streetlight directly toward the tip of the shadow cast by the streetlight... (more down below)

When the person is 12 feet from the streetlight and 5 feet from the tip of the streetlight's shadow, the person's shadow starts to appear beyond the streetlight's shadow.(a) Draw a right triangle...
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12/13/20

#### Evaluate the trigonometric function of the quadrant angle. (If an answer is undefined, enter UNDEFINED.) cot(π)

cot (π) = ______

12/13/20

#### Use the given value and the trigonometric identities to find the remaining trigonometric functions of the angle.

sec(π) = -3/2, cot(π) < 0sin(π) = cos(π) =tan(π) = csc(π) =ο»Ώcot(π) =

12/09/20

#### In Problems i-iv,

a) Find the slope of the line that passes through the given points.b) Find the point-slope form of the equation of the line.c) Find the slope-intercept form of the equation of the line.d) Find the...
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12/09/20

#### 6. In Problems i-iv, find each of the following: a) Intercepts b) Vertex c) Maximum or minimum d) Range

i) m(x) = (π₯+1)2 β 2 ii) n(x) = (π₯β4)2 β 3please solve, thank you very much in advance.

12/09/20

#### 3. If f(x) = x -1 and g(x) = 1/π₯+1 ,

find the following functions i) f(g(x)) ii) g(f(1/2) please solve both the parts , thank you.

12/08/20

#### What is his speed and the wind speed

A man flies a small airplane from cargo to Bismarck. North Dakotaβ a distance of 180 miles. Because he is flying into a head wind the trip takes him 2 hours. On the way back the wind is still...
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12/07/20

#### Convert these from general form to standard form.

Determine the standard form of equation of the ellipse whose general form is given.
4x2 + 3y2 - 8x +6y - 5 = 0
9x2 + 10y2 + 54x + 100y +241 = 0
4x2 + 9x2 - 32x - 36y +64 = 0
5x2 + 9y2 +20x -180y +...
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