Perform the indicated operation. Write the result in standard form.7i(6 - 7i)
A. 49 + 42i
B. 42i - 49
C. 42i + 49i2
D. 42i - 49i2
Answer: A
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Solve the system mentally, without the use of a calculator or pencil-and-paper calculation. Try to visualize the graphs of both lines.x + 0y = 90x + y = 4
A. x = 9; y = 4
B. x = 4; y = 9
C. x = 9; y = 2
D. x = 2; y = 
Use either the binomial theorem or Pascal's Triangle to expand the binomial.
3
A. 
x3 + 
x2 + 4x + 8
B. 
x6 + 
x3 + 8
C. 
x3 + 
x2 + 4x + 8
D. 
x3 + 
x2 + 8
Fill in the blank with one of the words or phrases listed below. Not all choices will be used.
A(n) 
is the quotient of two numbers.
A. denominator B. least common denominator C. numerator D. ratio
Refer to right triangle ABC with 
. Solve for all the missing parts using the given information.
?
?
Round the number of degrees, the number of minutes, and the lengths of the sides to the nearest whole number.
?
A. ?
B. ?
C. ?
D. ?
E. 