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Algebra Problem:

Add: -30∠-150° - 25∠40°(A) - 45.13 R - 1.07 U(B) 45.13 R + 31.07 U(C) -55∠-110°(D) 6.83 R - 1.07 U(E) None of the above Left = -Right Down = -Up For this I got; (C) -55∠-110°. Is this the correct... more

03/12/20

parameter question stuck on

The ellipse (x^2/9^2)+(y^2/5^2)=1 can be drawn with parametric equations where x(t) is written in the form: x(t)=rcos(t) with r= __?___and y(t)=__?__

03/12/20

need help with parameter

Eliminate the parameter t to find a Cartesian equation in the form x=f(y) for:x(t)=-3ty(t)=-8+2tThe resulting equation can be written as x = 

03/11/20

Geometry homework

Find the arc length of a swing set swing, if the chain is 8 feet long and the maximum angle you can swing is 90 degrees.A. 2π ftB. 3π ftC. π FtD. 2 π ft

03/11/20

Geometry Homework

Find the arc length of a shot put ring with a radius of 20 meters and a central angle measure of 35 degrees. A. 122.2 mB 61 mC. 6.1 mD. 12.2

03/11/20

Geometry Homework

The radius of a circle is 3 meters. What is the length of a 180 degree arc? In simplest form.

03/09/20

How to find the equilibria?

(dp/dt) = p(1 − p)[α(1 − p) − βp]where 0 < α < 1  and 0 < β < 1.Find all the equilibria and state which are stable and unstable.

02/16/20

need help please, college math

Find the EXACT value of sin(A−B) if sin A = 3/10 and cos B = √13/7. Assume A and B are Quadrant I angles in standard position.sin(A−B) = 

02/16/20

Find the y-intercept y=x^2+6x+8

Slopes of Parallel and Perpendicular Lines

Are the given lines parallel? Explain your reasoning.Question: X=3, Y= -3Are the lines going to be parallel?

02/16/20

Determine whether the graph of the equation y=x3+x is symmetric with respect to the y-axis, the x-axis, the origin, or has no symmetry. Show your work.

Determine whether the graph of the equation y=x3+x is symmetric with respect to the y-axis, the x-axis, the origin, or has no symmetry. Show your work.

02/16/20

College Algebra

Solve the following inequality and write the answer in interval notation. -5<3x+2<3

02/14/20

Divide: (sqrt(5) + 3) / (sqrt(5) - 3)

Divide by multiplying the denominator by its conjugate, then simplify. If your answer doesn't match any of these answers, see how you can rewrite your expression to equal one of these. Divide:... more

02/14/20

Show that the equation represents a circle by rewriting it in standard form. Then find the center and radius of the circle.

Show that the equation represents a circle by rewriting it in standard form.4x2 + 4y2 − 5x = 0= ???Find the center and radius of the circle.(x,y)= (?,?)r= ?

COMBINATION OF FUNCTIONS: Type the combination HELP PLEASE!!

Type the composition .  f(x) = x2 + 2x        g(x) = x − 3  

02/13/20

The sum of 5 times a number and 6 is 9

arithmetic progression

the sum of the arithmetic progression 4, ... ,76 is 1920. Find the number of terms and the common difference.

02/13/20

3 1/4 ounces written in decimal form?

02/13/20

What is Five less than twice a number is at most 145.

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