Simplify.
A.
B.
C.
D.
Answer: C
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Perform the indicated operations. Write the result in the form a + bj.(3 + )(-9 -
)
A. -27 - 20j
B. -7 + 21j
C. -7 - 21j
D. -47 - 21j
Solve.The function A = A0e-0.00693x models the amount in pounds of a particular radioactive material stored in a concrete vault, where x is the number of years since the material was put into the vault. If 700 pounds of the material are placed in the vault, how much time will need to pass for only 231 pounds to remain?
A. 320 years B. 160 years C. 170 years D. 165 years
Find the number of subsets of the set of all vowels in the alphabet.
a. 128 b. 5 d. 25
Find the slope and y-intercept of the line.y = 5x
A. slope = -5; y-intercept = 0
B. slope = 5; y-intercept = 0
C. slope = 0; y-intercept = 5
D. slope = ; y-intercept = 0