Find the sum of the arithmetic sequence.-3 + 1 + 5 + 9 + 13 + ... + (4n - 7)
A. n(4n + 7)
B. n(2n + 5)
C. n(2n - 5)
D. n(4n - 7)
Answer: C
Mathematics
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Express the number in scientific notation.0.0000004
A. 4 × 10-6 B. 4 × 10-8 C. 4 × 10-7 D. 4 × 10-9
Mathematics
Find the vertex of the parabola.f(x) = 4x2 + 40x - 5
A. (5, 2) B. (-2, -5) C. (2, 5) D. (-5, -105)
Mathematics
Find the composite function for the given functions.f ? g for f(x) = 7x + 12 and g(x) = 4x - 1
A. 28x + 11 B. 28x + 19 C. 28x + 5 D. 28x + 47
Mathematics
Find the exact value of the expression without using a calculator.
A. 
B. 
C. 
D. 
Mathematics