Answer:
the first, third and fourth sentences are correct
Step-by-step explanation:
Answer:
Line z2 : Point L
Line z1 : Point A
Step-by-step explanation:
To find the complex conjugate you flip the sign of the complex number but keep the same magnitudes.
For line z2 we can see that one of the points is
. To find the complex conjugate we just flip the sign. So the complex conjugate is
.
This means that the complex conjugate of line z2 can be represented with point: L
For line z1 we do the same thing.
goes to
. This can be represented with the point A
Answer:
see explanation
Step-by-step explanation:
To find k, calculate the ratio of corresponding sides, image to original, that is
k =
=
= 
Thus
QR' =
× QR =
× 21 = 2 × 3 = 6 , that is
x = 6 → C
Add 5 to 19 which is 24 then divide it by -6 and it’s x= -4
Answer:
c. 30.0 minutes
Step-by-step explanation:
Max mows 1/45 lawns per minute.
Jan takes twice as long (90 minutes per lawn), so mows 1/90 lawns per minute.
Working together, they mow ...
(1/45 + 1/90) lawns per minute = (2/90 +1/90) lawn/min = 3/90 lawn/min
= 1/30 lawn/min
Then for one lawn, it takes ...
(1 lawn)/(1/30 lawn/min) = 30 min