Solve the equation.-3.4q + 1.6 = -19.4 - 1.3q
A. 6.6
B. -23
C. 10
D. 6.2
Answer: C
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Evaluate the algebraic expression for the given values of the variables.6
+ 
for w = 100 and z = 36
A. 606 B. 66 C. 16 D. 12
Find the probability.If two cards are drawn with replacement from an ordinary deck, find the probability the first card is a heart and the second is a diamond.
A. 
B. 
C. 
D. 
Write the complex number in trigonometric form r(cos ? + i sin ?), with ? in the interval [0°, 360°).7 + 7i
A. 7
( cos 135° + i sin 135°)
B. 7
( cos 45° + i sin 45°)
C. 7
( cos 315° + i sin 315°)
D. 7
( cos 225° + i sin 225°)
Derive the following result. You may do so either “algebraically” using the properties listed in Theorem 6.2.2, being sure to give a reason for every step, or you may use the element method for proving a set equals the empty set.
For all sets B and C, (B ? C) ? B = ?.