Determine whether there is a maximum or minimum value for the given function, and find that value.f(x) = x2 - 18x + 91
A. maximum: -10
B. minimum: 0
C. minimum: 10
D. maximum: 9
Answer: C
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Find the value of the variable that satisfies the equation.
x - 
= -4
A. x = 17 B. x = -15 C. x = 15 D. x = -17
Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 6
C. 55
D. 
Advertising Suppose that a survey of 100 advertisers in U.S. News, These Times, and World found the following.
21 advertised in all three
24 advertised in These Times and U.S. News
57 advertised in World and U.S. News
23 advertised in World and These Times
51 advertised in These Times
64 advertised in U.S. News
65 advertised in World
Which is the correct Venn diagram representing this information?
 figure 1.png)
 figure 2.png)
Perform the specified calculation.For the vectors u = 
and w = 
, calculate |-5u| - |4w|.
A. 5
- 4
B. 5
+ 4
C. -5
- 4
D. 5
- 4