Solve.logx(64) = 2
A. {-8}
B. 
C. {8}
D. 
Answer: C
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Solve equation using quadratic formula.25k2 - 36 = 0
A. 
, - 
B. 
, 0
C. 6, 0
D. 
, - 
Solve the system by the substitution method.x2 - y2 = 39 x - y = 3
A. {(-8, -5)} B. {(8, -5)} C. {(-8, 5)} D. {(8, 5)}
Postal regulations specify that a parcel sent by parcel post may have a combined length and girth of no more than 102 in. Find the dimensions of a rectangular package that has a square cross section and the largest volume that may be sent through the mail. What is the volume of such a package?
(Hint: The length plus the girth is 
(see the figure)).
?
?
A. 
B. 
C. ?
D. ?
E. ?
Use Heron’s formula to find the area of the triangle with sides of length 12, 18, and 24.
(a) 104.6 (b) 204.6 (c) 206.4 (d) 401.2 (e) none of these