Write the expression in the form a + bi, where a and b are real numbers.-7 + 
A. 7 - 2i
B. -7 - 2i
C. 7 + 2i
D. -7 + 2i
Answer: D
Mathematics
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Construct a decimal number by writing:8 in the tenths column,6 in the thousandths column,8 in the tens column,9 in the thousands column,8 in the hundreds column,7 in the hundredths column,8 in the ten thousandths column,2 in the ones column.
Fill in the blank(s) with the appropriate word(s).
Mathematics
Divide. Write with positive exponents.
A. 8x2 - 3 + 
B. 8x2 - 3 + 
C. 8x - 3 + 
D. 8x - 3 + 
Mathematics
Perform the calculation.180° - 8°45'27"
A. 172°14'33" B. 171°14'33" C. 172°15'33" D. 171°15'33"
Mathematics
Convert the measurement as indicated.30 ft to yards
A. 10 yd
B. 90 yd
C. 360 yd
D. 2
yd
Mathematics