Perform the indicated operation and write the answer in the form 
where a and b are real numbers.(6 - 5i)(7 + 3i)
A. -15i2 - 17i + 42
B. 27 - 53i
C. 57 + 17i
D. 57 - 17i
Answer: D
Mathematics
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Perform the indicated operations graphically.(4 + j) + (3 - 2j )
A. 
a = 4 - j
b = 3 - 2j
c = (4 - j) + (3 - 2j )
B. 
a = 4 + j
b = 3 - 2j
c = (4 + j) + (3 - 2j )
C. 
a = 4 + j
b = 3 - 2j
c = (4 + j) + (3 - 2j )
D. 
a = 4 + j
b = 3 - 2j
c = (4 + j) + (3 - 2j )
Mathematics
Evaluate, if possible3
A. 36 B. 48 C. 4 D. 12
Mathematics
Use Heron's formula to find the area of the triangle. Round to the nearest square unit.a = 10 yards, b = 10 yards, c = 16 yards
A. 51 square yards B. 54 square yards C. 57 square yards D. 48 square yards
Mathematics
Write the number in standard form.2.19 × 10-4
A. 0.0000219 B. -219,000 C. 0.000219 D. 0.00219
Mathematics