Find projv u.v = 7i - 3j + k, u = -3j + 4k
A. - 
j + 
k
B. - 
j + 
k
C. 
i - 
j + 
k
D. 
i - 
j + 
k
Answer: C
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Solve the problems.Enrollment in a business seminar increased from 62 people to 74 people. What was the percent of increase? Round to the nearest tenth of a percent.
A. 80.6% B. 83.8% C. 19.4% D. 16.2%
Establish the identity.tan2x = sec2x - sin2x - cos2x
What will be an ideal response?
Use substitution to factor the polynomial.15x4 + 26x2 + 8
A. (5x2 - 2)(3x2 - 4) B. (15x2 + 4)(x2 + 2) C. (3x2 + 4)(5x2 + 2) D. (3x2 + 1)(5x2 + 8)
Find the factored form of a polynomial function f whose roots are given. Then find values of the leading coefficient for which the coefficients of f in standard form are integers.Roots: 
, 
, 
, and 
A. f(x) = 60a(5x - 4)(3x - 2)(2x - 1)2
a = 60k, for any integer k
B. f(x) = 60a(5x + 4)(3x + 2)(x + 2)2
a = k, for any integer k
C. f(x) = 
(5x + 4)(3x + 2)(x + 2)2
a = 60k, for any integer k
D. f(x) = 
(5x - 4)(3x - 2)(2x - 1)2
a = 60k, for any integer k