Add.8234 + 603 + 3 + 26
A. 8866
B. 8666
C. 8306
D. 8966
Answer: A
Mathematics
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The position vector of a particle is r(t). Find the requested vector.The velocity at t = 
for r(t) = 4 sec2(t)i - 6tan(t)j + 1t2k
A. v
= 16i + 12j - 
?k
B. v
= -12j + 
?k
C. v
= -12j - 
?k
D. v
= 16i - 12j + 
?k
Mathematics
Solve.A transition duct is constructed from a circular sector of radius 20 inches and central angle 100°. What is the area of the metal used? What is the arc length of the sector? Round to the nearest tenth.
What will be an ideal response?
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Solve the problem.While shopping for a party, June bought 
of hamburger, 
of chicken, and 
of ham. How much meat did she buy?
A. 9
lb
B. 
lb
C. 
lb
D. 2
lb
Mathematics
Simplify the expression by combining like terms.-7y + 3 - 2 + 5 + y - 6
A. -8y + 1 B. -8y C. -6y D. -6y - 1
Mathematics