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 Grade 11 :: Functions by jjstanley
 $45deg$ and $pi/6$ radians are equivalent angles. True False
 Grade 11 :: Functions by jjstanley
 A swing at the playground is suspended by chains that are 10 feet long. Every time that a child swing from the highest point on one side to the highest point on the other side the swing travels a distance of 10.5 feet. What arc angle, in radians, is the child raveling each time the swing travels in one direction? $pi/2$ $(3pi)/2$ $(2pi)/3$ $pi/3$
 Grade 11 :: Functions by jjstanley
 A circular pathway is created with a diameter of 20 feet. If the pathway makes an arc of $210deg$ how long is the pathway? $210 ft$ $(7pi)/6$ $(35pi)/3 ft$ $35 ft$
 Grade 11 :: Functions by jjstanley
 How many radians are equivalent to $315deg$? $pi$ $(7pi)/4$ $(7pi)/6$ $(5pi)/4$
 Grade 11 :: Functions by jjstanley
 An arc distance of 2.62 m on a circle with a radius of 1 m would subtend and arc angle of how many radians? $pi/2$ $(5pi)/3$ $(5pi)/6$ $(7pi)/6$
 Grade 11 :: Functions by jjstanley
 The arc distance around a unit circle has the same value as the arc angle, in radians, that it subtends. True False
 Grade 11 :: Functions by jjstanley
 $720deg$ is equivalent to how many radians? $4pi$ $pi/4$ $2pi$ $pi/2$
 Grade 11 :: Functions by jjstanley
 On the unit circle (radius of 1) the arc distance from $0deg$ to $90deg$ is $90$ $pi/2$ $.25$ $pi$
 A bridge with a parabolic arch crosses a highway that is 30 m wide. The arch is 6 m high in the center and 4 m high at the edges of the highway. How wide is the arch at ground level? 40 m 17 m 34.6 m 36 m
 A cyclist rides over a hill that can be described by the equation $y=x^2-2x-24$. How far is the start position from the end position in a straight line? 10 24 2 5
 What are the zeros of the equation $y=-4x^2+x-120$ 30 , -30 1 , -1 120 , -120 No Real Roots
 Grade 11 :: Functions by jjstanley
 A ferris wheel has a radius of 45 feet and rotates and a rate of $2pi$ radians per minute. At what speed is a chair on the ferris wheel traveling while it is in motion? $283$ ft/min $2pi$ ft/min $180pi$ ft/min $141$ ft/min
 Grade 11 :: Functions by jjstanley
 $-pi/3$ is equivalent to $(5pi)/6$ $(4pi)/3$ $pi/3$ $(5pi)/3$
 If a field is $3 root(5)(x^8)$ units long and it is divided into $12 root(3)(x^4)$ segments, how long is each segment? $1/4 sqrt(x^4)$ $-9 root(2)(x^4)$ $1/4 root (15)(x^4)$ $1/4 root(5/3)(x^2)$
 Determine the roots of the equation $y=-x^2+24x-143$. 2 , -143 11 , 13 -11 , 13 No Real Roots
 Determine the roots of the equation $y=6x^2+10x-24$ $-3$ , $-4$ $-3$ , $4/3$ $3$ , $3/4$ $3/4$ , $4/3$
 Determine the roots of the equation $y=-x^2-8x+2$. -8.24 , 0.24 -6.02 , 2.04 8.42 , -2.04 6.02, -2.04
 What are the zeros of the equation $y=-x^2+120$? $+-sqrt(120)$ $sqrt60$ $sqrt(120)$ $+-sqrt60$
 What are the zeros of the equation $y=3x^2-16x+2$? 3 , 2 .2 , 5 -.12 , -5.2 .128 , 5.205
 A belted kingfisher sits on a branch watching for fish in the water. When it sights a fish it dives from the branch and its flight path is described as $y=x^2-4.25x+4.125$ where y is the height and x is the time in seconds. At what times does the bird enter and exit the water? 1.5 sec and 2.75 sec -2.5 sec and 1.75 sec -1.5 sec and -2.75 sec 0 sec and 4.125 sec