Perform the indicated operation and simplify. Write the answer in the form a + bi.(-9 + 15i) - (7 - 2i)
A. -2 - 17i
B. -16 + 17i
C. -16 - 17i
D. 2 - 17i
Answer: B
Mathematics
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Write the whole number in expanded form.20,300
A. 20,000 + 300 B. 2,300,000 C. 20,000 + 3000 D. 2000 + 300
Mathematics
Solve.A baseball player gets 6 hits in every 11 times at bat. At this rate, if he made 42 hits, find how many times he batted.
A. 462 times B. 77 times C. 42 times D. 252 times
Mathematics
Find the perimeter of the rectangle or triangle.
A. 5r3 + 11r + 11 B. r3 + 5r2 + 10r + 11 C. r3 + 4r2 + 11r + 11 D. 5r3 + r2 + 10r + 11
Mathematics
Solve and, when appropriate, round the answer to the nearest tenth.A manufacturer's cost is given by C = 200 
+ 200, where C is the cost and n is the number of parts produced. Find the cost when 729 parts are produced.
A. $2000 B. $1100 C. $22 D. $5600
Mathematics