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Question: fe 5 8 9 and 13...

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FE
#5 #8 #9 and #13

V5. A real root of x -x +3x - 4 exists between A) 0 and I B) 1 and 2 C) 2 and 3 D) 3 and 4 E)4 and 5 6. What is the exact value of sin 45 cos 15 A) cos 45° sin 15°? B) D) E) 7. If the roots of P(x) ritrztrstratrs? A) 3 2xx6x38x2-6x+ 8 are ri, r2. rs, ra, and rs, what is the value of B) 4 D) 2 8. Two forces of 6 lbs and 8 lbs act on an object. If these two forces form an angle of 60°, then find the magnitude of the resultant force. A) 2/19 lbs B) 10 lbs D) 2/37 lbs E) 2V13 Ibs to the equation 2 cos (x--)-1 V 9. Find all solutions in the interval (0.2 B)x=6 5n 11π 13. This is a graph relating the height (y) of a passenger on a Ferris Wheel to the amount of time she has been on the ride (x). What is an equation that could be used to model this behavior? (8,34 20 (3,4) (13,4)x A)y=-30 cos (x-31++ D)y30sin 319 Eo3)+19
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