WhiteCat

8 Questions
2 Answers

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840

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Precal problem

A person standing close to the edge on top of a 28-foot building throws a ball vertically upward. The quadratic function h=−16t2+108t+28h=-16t2+108t+28 models the ball's height about the ground, h, in feet, t seconds after it was read more ..

WhiteCat Oct 4, 2016

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634

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Calc 1 Problem (Tangent and Velocity )

Find the average velocity of the ball between t = 5 t=5 and t = 5.4 t=5.4 seconds.

Thanks !!

WhiteCat Oct 3, 2016

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915

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+33

parabora

# Write the equation of the parabola x = 2⋅y^2 −20⋅y+53 in vertex form x−h = a(y−k)^2

need some help :(

WhiteCat Jun 9, 2016

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3

2438

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hmm

A bicycle with 18-in.-diameter wheels has its gears set so that the chain has a 7-in. radius on the front sprocket and 4-in. radius on the rear sprocket. The cyclist pedals at 190 rpm

Find the linear speed of the bicycle in in/min read more ..

WhiteCat Jun 7, 2016

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4

8133

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+33

A truck with 42-in.-diameter wheels is traveling at 60 mi/h.

A truck with 42-in.-diameter wheels is traveling at 60 mi/h.

1. Find the angular speed of the wheels in rad/min:
read more ..

WhiteCat Jun 7, 2016

0

863

4

+33

Liner & Angular Speed Questions

circle is centered at (-5,3) and has radius of 5. A particle starts at point (-5,8) and travels clockwise on the circle, making one complete revolution every 13 seconds.
Write the parametric equations for the motion of the particle, where tt represents read more ..

Alan ●●●●

WhiteCat Jun 7, 2016

0

620

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A circle is centered at (-5,3) and has radius of 5. A particle starts at point (-5,8) and travels clockwise on the circle, making one complete revolution

Need some help :((

Thanks !

WhiteCat Jun 7, 2016

0

753

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+33

A circle is centered at the origin and has radius of 4. A particle starts at point (4,0) and travels clockwise on the circle, making one complete revolution

WhiteCat Jun 7, 2016

+33

+5

180 * 2 = 360

full circle = 360 degrees

WhiteCatJun 8, 2016