2,195 Answered Questions for the topic Pre Calculus

Pre Calculus

02/02/21

Pre calc help please!!!!
Find the four arithmetic means between -2 and 48
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02/02/21

Precalculus help
Your fishing bobber oscillates in simple harmonic motion from the waves in the lake where you fish. Your bobber moves a total of 1.5 inches from it hight point to its low point and returns to its... more
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02/02/21

Precalculus help

A ship leaves port at noon and has a bearing of S 29º W. The ship sails at 30 nautical miles per hour. At 6:00 P.M., the ship changes course to due west. What is the ship’s bearing and distance... more
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Pre Calculus Math Algebra 1 Algebra 2

01/31/21

A parabola has equation y=9x^2 + x +c. One x-intercept is -2. What is the value of c?
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Pre Calculus

01/31/21

Pre calculus honors verify the identity

Sin(a-b)———— = tana-tanb cosacosbthese lines ————- are basically the divided mark line thing
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Pre Calculus Chemistry

01/31/21

Find a pH for a substance with the hydronium ion [H3O+] concentration of 4.1 X 10^-4
Simplify your answer. Type an integer or decimal rounded to the nearest tenth as needed.
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Pre Calculus

01/27/21

Solve each equation for 0 ≤ 𝜃 < 2𝜋. Give exact answers. Enter your answers as a comma-separated list if needed. sin 𝜃 = 1
Solve each equation for 0 ≤ 𝜃 < 2𝜋. Give exact answers. Enter your answers as a comma-separated list if needed.sin 𝜃 = 1cos 𝜃 = −1sin 𝜃 = 0cos 𝜃 = 1sin 𝜃 = −1cos 𝜃 = 0
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Pre Calculus

01/27/21

From the top of a vertical tower, 319 feet above the the surface of the earth, the angle of depression to a doghouse is How far is it from the doghouse to the foot of the tower?

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Pre Calculus Precalculus

01/24/21

FInding The Equation of a Rational Function

A zero at x = 3A hole when x = 5A vertical asymptote at x = -1A horizontal asymptote at y = 3A y-intercept at y = -9What is the equation of the rational fn?
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01/23/21

How do you transform a graph of y=g(x) to y= g(2x)+ 3 (the coordinates are (-2,4)(0,0)(4,2)?
How do you transform a graph of y=g(x) to y= g(2x)+ 3 (the coordinates are (-2,4)(0,0)(4,2)? I don’t understand.How do you transform graph y = f(x) to graph y= -f(x)-1 ? (The coordinates are (0,0)... more
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Pre Calculus Calculus Precalculus

01/22/21

equation of the function graph?
is there anyone that know the equation for the function graph shown below?? im not sure about this.picture link: https://ibb.co/2SbMcjm
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Pre Calculus Precalculus

01/22/21

How to solve this problem

f(x) = 2x + 7 and g(x) = 9x - 1what is f(g(x))?
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Pre Calculus Precalculus

01/22/21

I need help on how to slove
f(x) = 3x + 4 and g(x) = 6x - 2what is the value of f(g(2))?
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Pre Calculus Precalculus Pre Calculus

01/20/21

If f(x)= 4x - x^2, find f(x+h)-f(x-h)/2h
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01/19/21

math precalculus 12
Helmut's parents gave him $1 on his first birthday (which went into his brand new piggy bank). On his second day, he received $3 and on his third birthday $5. His parents continued to give him... more
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01/19/21

math precalculus 12
Helmut's parents gave him $1 on his first birthday (which went into his brand new piggy bank). On his second day, he received $3 and on his third birthday $5. His parents continued to give him... more
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Pre Calculus

01/18/21

Find (fog) (5) f(x)=3x +1 and g(x)=square root x- 1

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01/18/21

Find the equation of the parabola in which the vertex is at (-3,3), axis parallel to x-axis and passing through the point (1,7).
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Pre Calculus

01/17/21

a question about functions
f(x)=2x^2-x+5 Find f(a+1)
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Pre Calculus Precalculus Trigonometry

01/16/21

An airplane flies at an altitude of 6 miles toward a point directly over an observer. Consider 𝜃 and x as shown in the figure.
(a) Write 𝜃 as a function of x.𝜃  = _____(b) Find 𝜃 when x = 12 miles and x = 2 miles. (Enter your answers in radians rounded to two decimal places.)x = 12 miles 𝜃 ≈ ________x = 2 miles ... more
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Pre Calculus Precalculus Trigonometry

01/16/21

Consider the following.
Find the length of the third side of the triangle in terms of x. = ________Find 𝜃 in terms of x for all three inverse trigonometric functions. 𝜃 = sin-1(_____)𝜃 = cos-1(_____)𝜃 = tan-1(_____)
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Pre Calculus Precalculus Trigonometry

01/16/21

An observer in a lighthouse 350 feet above sea level observes two ships directly offshore. The angles of depression to the ships are 𝛽 = 6° and 𝜃 = 8.5° (see figure). How far apart are the ships?
(Round your answer to one decimal place.)______ ft
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Pre Calculus Precalculus Trigonometry

01/16/21

Write an algebraic expression that is equivalent to the expression. (Hint: Sketch a right triangle, as demonstrated in Example 8.)
sec[arcsin(x − 1)]= ______
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Pre Calculus Precalculus Trigonometry

01/16/21

Find the exact value of the expression. Use a graphing utility to verify your result. (Hint: Make a sketch of a right triangle.)
csc(arctan(-15/8))= ______
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Pre Calculus Precalculus Trigonometry

01/16/21

The front of an A-frame cottage has the shape of an isosceles triangle. Stands 28 ft high and the angle of elevation of roof is 73°. What is the width of the cottage at its base?

(Round your answer to two decimal places.)= ______ ft
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