First rewrite the quadratic function in standard form by completing the square, then find any x-intercepts and any y-intercepts.f(x) = -x2 + 19x - 90
A. No x-intercepts; y-intercept: -90
B. x-intercepts: -9 and -10; y-intercept: 90
C. x-intercepts: 9 and 10; y-intercept: -90
D. x-intercepts: 9 and -10; y-intercept: 19
Answer: C
Mathematics
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Find the triple scalar product (u x v) ? w of the given vectors.u = -5i - 3j + 4k; v = 10i - 3j + 6k; w = 9i - 5j - 6k
A. 10 B. -23 C. -530 D. -674
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Simplify the given expression using the definition for negative exponents. Assume that all variables represent nonzero numbers.
A. a16 B. a97 C. a2 D. 97
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Identify the sequence as arithmetic, geometric, or neither.9, -9, 10, -10, 11, -11, . . .
A. Arithmetic B. Geometric C. Neither
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Find the unknowns on the right side of the partial fraction decomposition.
= 
+ 
A. A = - 
, B = - 
B. A = 
, B = - 
C. A = 
, B = 
D. A = - 
, B = 
Mathematics