Convert 491 picograms to nanograms.
a. 0.491 ng
b. 49.1 ng
c. 4910 ng
d. 491000 ng
a. 0.491 ng
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Solve the problem. Use 3.14 for ?, if necessary.The face-off areas in ice hockey have a diameter of 31.1 ft. Find the area of a face-off circle. Round to the nearest tenth, if necessary.
A. 3037.0 sq ft B. 759.3 sq ft C. 379.6 sq ft D. 97.7 sq ft
Find the constant of proportionality k, and write the linear function relating the two variables.Suppose that y is inversely proportional to x. When x = 
, then y = 10.
A. k = 5; y = 
B. k = 5; y = 
C. k = 
; y = 
x
D. k = 
; y = 
From the given list, identify the proper fractions.
, 
, 
, 
, 
A. 
, 
, 
, 
B. 
, 
C. 
, 
, 
, 
, 
D. 
, 
, 
Solve the problem.A parallelogram has a base of length 3x + 1 and a height of x + 1 and has an area of 96 square units. Find the base and height of the parallelogram. (A = BH)
A. height = 2 units; base = 48 units B. height = 6 units; base = 16 units C. height = 8 units; base = 12 units D. height = 4 units; base = 24 units