Use the distributive property to write an equivalent expression.0.9(2x + 5)

A. 1.8x + 4.5
B. 1.8x + 5
C. 1.8x - 4.5
D. 2.9x + 5.9


Answer: A

Mathematics

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Use Euler's method to calculate the first three approximations to the given initial value problem for the specified increment size. Round your results to four decimal places.y' = y2(1 - 2x), y(-1) = -1, h = 0.5

A. y1 = 0.4, y2 = 0.63, y3 = 0.7472 B. y1 = 0.7, y2 = 0.99, y3 = 1.9136 C. y1 = 0.5, y2 = 0.75, y3 = 1.03125 D. y1 = 0.7, y2 = 0.99, y3 = 1.2656

Mathematics

Determine if the sequence is an arithmetic sequence, a geometric sequence, or neither. If it is either arithmetic or geometric, give the next term in the sequence.5, 10, 15, 25, 40, . . .

A. arithmetic; 65 B. neither C. geometric; 65

Mathematics

Use a trigonometric substitution to evaluate the integral.

A. ln 6 - ln(1 +  )
B. ln 
C. ln (e3 +  )
D. ln(3 +  ) - ln(1 +  )

Mathematics

Find the area of the region specified in polar coordinates.The region enclosed by the curve r = 6 cos ?

A. 36? B. 12? C. 18? D. 9?

Mathematics