Find  figures 4.png)
(t) for the function given.
r(t) = 8i+sintj+costk
 ANSWER.png)
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Which of the following does not utilize the commutative property (there may be more than one property used)? ?
A.
?5(x + 4) = 5x + 5(4) = 5x + 4(5)
B.
?
C.
?a + (b + c) = (a + b) + c
D.
?a + (b + c) = (b + a) + c
E.
?None of the above.
Find the slope of the polar curve at the indicated point.r = 2(1 + cos ?), ? = 
A. -2
B. 
C. 1
D. 2
Solve the equation 
.
?
A. There is no solution.
B. 
C. 
D. 
Solve.The radioactive decay of radium 226 can be described by the equation 
where C is the original amount of radium and A is the amount of radium remaining after t years. If 23 milligrams of radium are sealed in a container now, how much radium will be in the container after 100 years. Round to the nearest thousandth.
A. 22.99 mg B. 24.006 mg C. 1.194 mg D. 22.037 mg