At 9 AM, one share of Starbucks stock was $47. By 1 PM the price was $52. The rate the Starbucks stock value was changing is $ ___ per hour. How would I solve this?

$1.25/hour

Step-by-step explanation:

9am to 1 pm = 4 hours

52-47=5

5/4 = $1.25/hour

f(2x−x2)=−3x2+6x−1

step-by-step explanation:

set up the composite function and evaluate.

f(2x−x2)=−3x2+6x−1

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: