Answer:
true
Step-by-step explanation:
Answer:
The distance betweem the two points is about 14
Step-by-step explanation:
The distance formula is
According to the problem: , , , and
Substitute these numbers into the problem to get
You can round this number to approximately 14.
Answer:
a) 17.6 + 5.4i
b) 37.6
Step-by-step explanation:
a) (9 + 9.4i) + (8.6 - 4i)
Collect like terms:
9 + 8.6 + 9.4i - 4i
= 17.6 + 5.4i
b) (9.4i)(-4i)
Expand the brackets:
9.4 * -4 * i * i
Therefore, i * i = -1
=> (9.4i)(-4i) = -37.6 * -1
= 37.6
Answer:
60 is the best answer for this question
A and C, ((-8)+7)times 10 and ((-2+7)times2