Decide whether the relation defines a function.{(1, 8), (1, -2), (5, -2), (9, -4), (11, -2)}
A. Function
B. Not a function
Answer: B
Mathematics
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The magnitudes 
, 
, and the angle ? between the vectors v and w are given. Round the requested magnitude or angle to the nearest tenth.
= 8, 
= 13, ? = 64°
Find the angle between v + w and w
A. 40.5° B. 37.2° C. 23.5° D. 79.1°
Mathematics
Find the product.
× 
A. 
B. 
C. 
D. 
Mathematics
Express the verbal representation for the function f graphically.Multiply the input x by 6 and then subtract 4 to obtain the output y.
A. 
B. 
C. 
D. 
Mathematics
Find all rational zeros of f. Then (if necessary) use the depressed equation to find all roots of the equation f(x) = 0.f(x) = 2x4 + 9x3 - 6x2 - 45x - 20
A. {
, 4, -
, 
}
B. {-4, - 
, -
, 
}
C. {- 
, 4, -
, 
}
D. {-4, 
, -
, 
}
Mathematics