The easiest way to obtain your answer would be simply to plug in every option, your outcome would be 9, or A
Answer:
CBD =31
Step-by-step explanation:
CBD + DBE equal 90 since together they form a right angle
CBD + 59 = 90
Subtract 59 from each side
CBD +59-59 = 90-59
CBD =31
Answer:
14 -2i
Step-by-step explanation:
9 + sqrt(-4) - ( -5 + sqrt(-16))
We know the sqrt of a negative number is i * sqrt(number)
9 + isqrt(4) - ( -5 + isqrt(16))
9 + 2i - (-5 + 4i)
Distribute the negative sign
9+2i +5 -4i
Combine like terms
14 -2i
