Evaluate the polynomial.P(x) = 4x + 9, P( 8)
A. 23
B. 41
C. 64
D. 13
Answer: B
Mathematics
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Express the number in scientific notation.0.000315
A. 3.15 × 10-3 B. 3.15 × 104 C. 3.15 × 10-4 D. 3.15 × 10-5
Mathematics
In work with alternating current, complex numbers are used to describe current I, voltage E, and impedance Z. These three quantities are related by the equation E = IZ. Solve the equation E = IZ for the missing variable.I = 11 + 8i, Z = 9 + 2i
A. E = 115 + 94i B. E = 99 + 110i C. E = 99 + 16i D. E = 83 + 94i
Mathematics
Find the area of the figure. Use 3.14 for ?. Round your answer to the nearest tenth.
A. 1034.0 ft2 B. 877.0 ft2 C. 563.0 ft2 D. Not enough data
Mathematics
Evaluate the square root.
A. 18 B. 40 C. 10 D. 9
Mathematics