2,195 Answered Questions for the topic Pre Calculus

Pre Calculus Math Science Algebra 2

04/09/21

Combining functions
f={(−4,−1),(1,−1),(−1,−3)}andg={(0,2),(1,−1),(−4,2)}Step 1 of 4 : Find (f+g)(1).=???
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Pre Calculus

04/08/21

The mathematical model for learning an assembly-line procedure needed for assembling one component of a manufactured item is n=−5 ln (0.95/P -1)
The mathematical model for learning an assembly-line procedure needed for assembling one component of a manufactured item is n=−5 ln(0.95/P -1) where P is the proportion of correctly assembled... more
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Pre Calculus Math Pre Calculus

04/08/21

Pre-calc question
Verify: sin^3 𝑥−cos^3𝑥/sinx-cosx = 1 + sin 𝑥 cos 𝑥what do i do with the third powers?
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Pre Calculus Math Precalculus

04/08/21

Pre-calc question
Evaluate cos 5𝜋/12 + sin𝜋/12 / cos𝜋/12 - sin 𝜋/12 (its two factions over two fractions )
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Pre Calculus Math Precalculus

04/06/21

Precalc question
Solve for x in [0,2𝜋): 2cos𝑥−1−3sec𝑥=0
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Pre Calculus Math Precalculus

04/06/21

Pre-calc question
Verify: sin x +sin 3x ––––––––––– = cos x 2 sin 2x
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Pre Calculus Math Precalculus

04/06/21

Pre- calc question
Find the exact value ofcos(2 cos^-1√3/2)
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Pre Calculus Math Precalculus

04/06/21

Pre- calc question

rewrite in terms of 𝜶 only cos(𝛼 + 𝛽) cos 𝛽 + sin(𝛼 + 𝛽)(sin 𝛽)
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Pre Calculus Math Precalculus

04/06/21

Pre calc question
Write as an algebraic expression (no trigonometric functions) Assume x and y are positive and in the domain of the given inverse function cos(sin^-1 𝑥 − cos^-1 𝑦)
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Pre Calculus Math Precalculus

04/06/21

Pre-calc question

Verify: sin^3 𝑥−cos^3𝑥/sinx-cosx = 1 + sin 𝑥 cos 𝑥
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Pre Calculus

04/06/21

Solve the equation on the interval [0, 2π). Suppose f(x) = cos θ - 1. Solve f(x) = 0.
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Pre Calculus Precalculus

04/05/21

For the line given by, y=−3𝑥 , find the slope of a line that is: a) parallel to the given line and b) perpendicular to the given line
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Pre Calculus

04/05/21

A cone has a radius that is 3 cm longer than the height. Express the volume V of the cone as a function of the height h.
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Pre Calculus Precalculus

04/03/21

Complete the equation of the circle centered at (8,−6) that passes through (8,9).

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Pre Calculus Precalculus

04/03/21

𝑥2+𝑦2−12𝑥+12𝑦+68=0 x 2 + y 2 − 12 x + 12 y + 68 = 0 is the equation of a circle with center (ℎ,𝑘) ( h , k ) and radius 𝑟 r for: h= and k= and r =
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Pre Calculus Precalculus

04/03/21

The midpoint of 𝐴𝐵 A B is at (−4,−1) ( − 4 , − 1 ) . If 𝐴=(8,−5) A = ( 8 , − 5 ) , find 𝐵 B .

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Pre Calculus Trigonometry

04/01/21

How to solve and get the general solution without a calculator
How to solve and then get the general solution of 2 cos2xcos 3pi/10 - 2 sin2xsin 3pi/10 = √2
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Pre Calculus Math Calculus

04/01/21

Guys, I need help with this project, I don't know how to do it. I need the steps.
Project: Find the slope of a line tangent to the graph of y=x^2+1 at ( 2, 5)​
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Pre Calculus Math Science Algebra 1

03/30/21

variations and variables
Suppose that y is inversely proportional to the 4th power of x, and that y=15 when x=6. What is y when x=5?y=???
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Pre Calculus Trigonometry

03/30/21

inverse equations
can anyone help me find the inverse of these 2 equations? Y = 5/x+2 Y= x+1/2+x
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Pre Calculus Trigonometry

03/30/21

inverse equations
how would you prove these two equations are or are not inverses of each other?F(x) = (x – 6)2G(x) = sq rt. of x +6
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Pre Calculus Trigonometry

03/30/21

proving inverses
how would you prove these two equations are or are not inverses of each other?F(x) = ½ x + 5G(x) = 2x - 10
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Pre Calculus Math Algebra 1 Algebra 2

03/30/21

Find the height
A triangular prism has a volume of 250 cubic inches and the area base is 25 square inches. What is the height of the prism in inches?
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Pre Calculus Math Algebra 1 Precalculus

03/28/21

pls help im not smart
Jack has $500 in a bank account that will earn 3% interest every year. Diane has $100 in an investment account that will earn 12% every year. How many years will it take for Diane's account balance... more
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Pre Calculus Math Algebra 1 Precalculus

03/28/21

pls help im not smart
Jack has $500 in a bank account that will earn 3% interest every year. Diane has $100 in an investment account that will earn 12% every year. How many years will it take for Diane's account balance... more
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