I believe it would be any number that is within the darkest shaded area. (-4,1) seems like it would be correct.
Answer:
add, subtract, multiply and divide complex numbers much as we would expect. We add and subtract
complex numbers by adding their real and imaginary parts:-
(a + bi)+(c + di)=(a + c)+(b + d)i,
(a + bi) − (c + di)=(a − c)+(b − d)i.
We can multiply complex numbers by expanding the brackets in the usual fashion and using i
2 = −1,
(a + bi) (c + di) = ac + bci + adi + bdi2 = (ac − bd)+(ad + bc)i,
and to divide complex numbers we note firstly that (c + di) (c − di) = c2 + d2 is real. So
a + bi
c + di = a + bi
c + di ×
c − di
c − di =
µac + bd
c2 + d2
¶
+
µbc − ad
c2 + d2
¶
i.
The number c−di which we just used, as relating to c+di, has a spec
0.5a - 0.3 = 5
Add 0.3 to both sides:
0.5a = 5.3
Divide both sides by 0.5:
a = 10.6
Answer:
B
Step-by-step explanation:
Since the triangle is right use the tangent ratio to find x
tan22° = 
= 
Multiply both sides by x
x × tan22° = 203 ( divide both sides by tan22° )
x = 
≈ 502.5 m → B
Answer: 216 - 202 = 14
Step-by-step explanation:
It’s 14 because in my way, I separated the numbers, like this:
200 - 200 = 0
16 - 2 = 14
Since 0 is equal to nothing, the answer is 14.
