915 Answered Questions for the topic Pre-Calculus

#### look i am desperate. please someone ACTUALLY help me with my math homework please??

Determine whether the given sequence could be geometric, arithmetic, or neither. If possible, identify either the common ratio or the common difference.4, 2, 1, 1/2, .... A.) geometric; r = 2B.)...
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06/07/21

#### Suppose sin(theta)= m where 0° Is Less than or equal to theta and less than or equal to 90°. Write an expression for each of the following in terms of “m”

a) sin(theta) = ? b) cos(theta) = ?

05/18/21

#### Let (-2,-3) be a point on the terminal side of θ. Find the exact values of cosθ, cscθ, and tanθ.

Pre Calculus

05/17/21

#### Use Identities to find the value of each expression.

Find Cos theta and sec theta if tan theta equals -2 and sin theta is greater than zero.

Pre Calculus

05/14/21

#### Cos A =4/5(A in quadrant 4) and Sin B=2/3 (B in quadrant 2)

Using the equation above I need to find Sin B-A and cos B/2

05/10/21

#### Recall the equation for a circle with center ( h , k ) and radius r

Recall the equation for a circle with center (h,k) and radius r. At what point in the first quadrant does the line with equation y=2x+2 intersect the circle with radius 3 and center (0, 2)?x = y =

Pre Calculus

05/10/21

#### Below is the graph of a parabola with its vertex and another point on the parabola labeled. Write an equation of the parabola. The points are (-3,5) and (2,-5)

05/07/21

#### Convert the rectangular equation x^2 +(y+2)^2 =4 to a polar equation

Please help me with a step by step so I can find my mistake thank you

05/07/21

#### Write an equivalent expressions for 8cos^4 (x) that does not contain powers of trigonometric functions greater than 1

Please help me with this question

05/06/21

#### Can someone please answer this for me, I have been trying to work it out but I get an incorrect answer. Thank you

An object is objected to two forces: f1=112 lbs at 231degrees from the north clockwise and f2=108 lbs at N 16degrees W .. I have to find the components of F1 and write in standard form, using i and...
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Pre Calculus Trigonometry

05/06/21

#### What is the altitude of the plane?

A plane approaches an airport runway. The runway is 9000ft long. The pilot sights the start of the runaway at an 18.8° angle of depression, and the end of the runway at a 17.5° angle of depression....
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05/04/21

#### Write an equivalent expression for 6 sin^4 𝑥 that does not contain powers of trigonometric functions greater than 1

the x is not raised to the power of 6

04/30/21

#### Solve this problem please

Given that sin u = −2/5 , u in quadrant III, and cos v = 3/4 , v in quadrant IV, find the exact value of sin(u + v).

Pre Calculus Precalculus

04/30/21

#### If a sample of a radioactive isotope decays from 400 grams to 50 grams in 6 days, find the half-life of the isotope. Simplify your answer as much as possible.

Pre Calculus Calculus

04/27/21

#### Write equations of cosine functions using properties

Find an equation for a sinusoidal function that has period 2𝜋, amplitude 1, and contains the point (𝜋,4)Cos2pi/2pi=1Cos(x)4 = Cos(pi+C)+D4= Cos (pi+0) +D4= Cos (pi)+D4= (-1) +D My...
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Pre Calculus

04/26/21

#### Solve for the equation. (Find all solutions of the equation in the interval [0, 2π). Enter your answers as a comma-separated list.)

4 sin(4x)= -8 sin(2x)x=

Pre Calculus Trigonometry

04/25/21

#### This is a circular trig problem that I need help on (pre calculus).

The latitude of London, England is 51.5 N. How far is London from the North Pole if the radius of the earth is approximately 39363 miles?

Pre Calculus Calculus

04/25/21

#### A particle is moving with the given data. Find the position of the particle, s(t).

A particle is moving with the given data. Find the position of the particle, s(t).(i) a(t) = 2t + 7 , s(0) = 3 , v(0) = -3 s(t) = ??(ii) t^2 - 5t + 4 , s(0) = 0 , s(1) = 20 s(t) = ??

Pre Calculus Trigonometry

04/15/21

#### Graphing cosine functions

How would I add increments of p/4 to an x-axis when phase shifting a cosine graph.Say my x-axis looks like:0 | | p/2 | | p | | 3p/2 | | 2pHow do I...
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04/15/21

#### Which of the following is the general solution of the differential equation dy dx equals the quotient of 8 times x and y

options - a) y2 = x2 + Cb)x2 - y2 = Cc)y2 = 4x2 + Cd)y2 = 8x2 + CI think its D

04/14/21

#### How do I solve this?

The problem is: "Use the Law of Sines to solve the triangle. Round your answers to two decimal places. A = 80° 20', C = 53.7°, c = 17.9"I understand the whole Law of Sines thing and how to use...
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