Solve the inequality algebraically. Write the solution in interval notation.
? 6
A. (-8, 4)
B. (-8, 4]
C. [-8, 4]
D. [-8, 4)
Answer: C
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Find the slope of the line.4y - 2x = 7 + 3y - 2x
A. 1 B. 7 C. 0 D. Undefined
Decompose v into two vectors v1 and v2, where v1 is parallel to w and v2 is orthogonal to w.v = i + 2j, w = 3i + j
A. v1 = 
(3i + j), v2 = - 
i + 
j
B. v1 = 
(3i + j), v2 = 
i + 
j
C. v1 = 
(3i + j), v2 = 
i + 
j
D. v1 = 
(3i + j), v2 = - 
i + 
j
Solve the problem.A sample of 400 g of lead-210 decays to polonium-210 according to the function given by 
where t is time in years. What is the amount of the sample after 30 years (to the nearest g)?
A. 83 g B. 111 g C. 1045 g D. 153 g
Solve the problem.An urn contains three white balls and two red balls. The balls are drawn from the urn, one at a time without replacement, until a white ball is drawn. Let X be the number of the draw on which a white ball is drawn for the first time. Determine the probability distribution for X.
What will be an ideal response?