Evaluate.-4x2 - 9x - 1 for x = -4
A. -29
B. 27
C. 99
D. -101
Answer: A
Mathematics
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Approximate f(x) to four decimal places.f(x) = 
, x = 0.4
A. 2.1621 B. 0.4108 C. 1.4918 D. 1.0811
Mathematics
Write the expression as a complex number in the form a + bi.
+ 
A. 0 - 15i B. 0 + 15i C. 0 + 56i D. -15 + 0i
Mathematics
Write out the first five terms of the sequence.an = n- 4
A. -4, -3, -2, -1, 0 B. 3, 2, 1, 0, -1 C. -3, -2, -1, 0, 1 D. 3, 2, -1, 0, 1
Mathematics
Combine like terms when possible. 15r - 3r6 - 5r6 + 15r
A. 22r B. 22r6 C. 30r - 8r6 D. cannot be simplified
Mathematics