Find the unit vector in the same direction as the given vector.v = 8i
A. u = 8i
B. u = 
i
C. u = 64i
D. u = i
Answer: D
Mathematics
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Find the area of the specified region.Shared by the circle r = 8 and the cardioid r = 8(1 + sin ?)
A. 16(5? - 8) B. 0 C. 16(5? + 8) D. 64
Mathematics
Solve the formula
?
?
for the indicated variable.
?
A. 
B. ?
C. ?
D. ?
E. ?
Mathematics
Multiply and simplify.(
+ 
)2
A. 7x + 
+ y
B. 49x2 + 2
+ y2
C. 49x2 + 
+ y2
D. 7x + 2
+ y
Mathematics
The figure shows two right triangles drawn at 
to each other.
?
?
If 
, 
, and 
, find x and then find h.
?
Apply the rules regarding the use of significant digits when determining your answer.
?
__________
?
__________
What will be an ideal response?
Mathematics