Factor completely.15z4 - 8z2 - 16
A. (5z4 + 4)(3z - 4)
B. (5z2 + 4)(3z2 - 4)
C. (3z4 + 4)(5z - 4)
D. (3z2 + 4)(5z2 - 4)
Answer: B
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Write an equation that expresses the relationship. Use k as the constant of variation.d varies inversely as v.
A. d = 
B. d = kv
C. kd = v
D. d = 
If ?DEF is isosceles and ET bisects ?DEF, then
(a) ET ? DF. (b) ET bisects DF. (c) Neither (a) nor (b) is necessarily true. (d) Both (a) and (b) are true. (e) ?DET ? ?FET.
Find the radius or diameter as requested.Find the diameter.
A. 
m
B. 
m
C. 
m
D. 
m
Solve.A boat leaves the dock and sails in a direction of 70°. Once reaching its destination on the opposite shore, it sails in a direction of 272° and docks 150 km north of its original starting position. What is the total distance the boat has traveled? Round to the nearest kilometer.
A. 997 km B. 776 km C. 926 km D. 626 km