? = central angle of a circle, r = radius of the circle, s = length of the intercepted arc, 
speed, 
speed, and t = time. Find the missing quantity. Give an exact answer unless otherwise indicated.r = 4 meters, ? = 
radians, s = ?
A. 
m
B. 36? m
C. 
m
D. 
m
Answer: D
You might also like to view...
The bar-graph shows the average living expenses of an undergraduate student. Provide an appropriate response.
Estimate the yearly increase in living expenses.
A. $450 B. $500 C. $650 D. $750
Use the Instructional Algorithm for addition or subtraction to perform the operation.15 + 44
A. 59 B. 49 C. 56 D. 69
Write the division problem using two other symbols.45 ÷ 9 = 5
A. 45 × 9 = 5; 45 - 9 = 5
B. 
= 5; 
C. 
= 5; 
D. 
= 45; 
Find the center, foci, and vertices of the ellipse.4x2 + 81y2 = 324
A. center at (0, 0)
foci at (- 
, 0) and (
, 0)
vertices at (-9, 0), (9, 0)
B. center at (0, 0)
foci at (-9, 0) and (9, 0)
vertices at (-81, 0), (81, 0)
C. center at (0, 0)
foci at (0, - 
) and (0, 
)
vertices at (0, -9), (0, 9)
D. center at (0, 0)
foci at (0, -2) and (0, 2)
vertices at (0, -4), (0, 4)