Write the expression in the standard form a + bi.(9 + 5i)(9 - 5i)
A. 106
B. 81 - 25i
C. 81 - 25i2
D. 56
Answer: A
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Translate the phrase to an algebraic expression. Use n for the variable unless otherwise stated.two decreased by some number
A. n - 2 B. 2 - n C. 2 ÷ n D. 2 + n
Find an approximation of the area of the region R under the graph of f by computing the Riemann sum of f corresponding to the partition of the interval into the subintervals shown in the accompanying figures. Use the midpoints of the subintervals as the representative points.
?
?
A. 8.4 sq units B. 8.095 sq units C. 8.47 sq units D. 9.442 sq units
Find the sum of the first 4 terms of the geometric sequence 2, -8, 32, ...
Fill in the blank(s) with the appropriate word(s).
Find an equation of variation in which y varies inversely as x and the following is true.y = 40, when x = 4
A. y = 
B. y = 
C. y = 10x
D. y = 