Answer:
I think the F could mean force like F = ma (mass acceleration)
Step-by-step explanation:
Answer:
Complex and imaginary number
Step-by-step explanation:
First, let's write the number
in the form of
.

Since
can be written in the form of
, where
and
are real numbers, it is a complex number.
Also, since
, it is also an imaginary number.
is complex and imaginary.
Answer:
ZB = 54
Step-by-step explanation:
Complementary angles add to 90 degrees
ZA + ZB = 90
x-15 + x+3 = 90
Combine like terms
2x-12 =90
Add 12 to each side
2x-12+12 = 90+12
2x = 102
Divide by 2
2x/2 = 102/2
x = 51
We want to find the measure of ZB
ZB = x+3
ZB = 51+3
ZB = 54
You didn't specify how big the festival is. so i can't find the answer.....but i will try
first let's devide 10,000 by 0.9 to see how many square metres we need, to fit 10,000 people
10,000÷0.9=11,111 square meters
we need atleast 11,111 meters of land for a safe festival
1.530 divided by 10 is your answer