Solve the problem.If v = -2i + 2j, find 
.
A. 2
B. 4
C. 8
D. 2
Answer: D
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Solve the problem.Jane has invited 50 people to a party and expects 
to attend. Of those invited who attend, 
will bring a date. Express the expected number of guests n as an inequality and graph the values of n.
n = number of guests
A. 24 ? n ? 40
n = number of guests
B. 42 ? n ? 60
n = number of guests
C. 20 ? n ? 25
n = number of guests
D. 30 ? n ? 40
n = number of guests
Determine if the graph of the function opens upward or downward and whether it has a maximum or a minimum point.f(x) = 8x2
A. Downward, minimum B. Upward, minimum C. Downward, maximum D. Upward, maximum
Alan, Boris, Cali, and Doris are dividing a cake among themselves using the divider-chooser method. The cake is divided into four slices s1, s2, s3, and s4.To Alan, the value of s1 and s2 are each worth twice that of s3. If Alan values s4 as 40% of the cake, what would be his declaration?
A. {s1, s2} B. {s1, s2, s4} C. {s1, s2, s3, s4} D. {s4} E. none of these
Provide an appropriate response.Twenty months is equal to 
of a year.
A. True B. False