Answer:
Step-by-step explanation:
The binomials are multiplied in the usual way, using FOIL or the distributive property:
(5 -2i)(3 -4i) = 15 -20i -6i +8i²
Since i² = -1, this becomes ...
= 15 -20i -6i -8 = 7 -26i
I believe the answer is 10^4
Answer:
5(c) - 6 = 4 - 3(c) is wrong
Step-by-step explanation:
The other problems are correct and equal. This one is wrong because when you do the equations you get 19 = -11 which is clearly not equal. You would need to change the equation to make it equal. So it would be:
5(c) - 6 = 4 - -3(c) so now it is 19 = 19.
So you would change 5(c) - 6 = 4 - 3(c) into 5(c) - 6 = 4 - -3(c)
<em>I hope this helps :)</em>
Answer:
D 9
Step-by-step explanation:
569.37 = 62.50x + 7.23
562.14 = 62.5x
x = 9.04 so 9 pairs
Answer:
See below in bold.
Step-by-step explanation:
a) h = -3t^2 + 15t = 0
-3t(t - 5) = 0
t = 0, 5 are the zeroes of the relation.
b) The ball hits the ground when h = 0 so it is after 5 seconds.
c) The path of the ball is a parabola which opens downwards so the maximum height is when x = 5/2 = at 2.5 seconds.
d) this maximum height is -3(2.5)^2 + 15(2.5) = 18.75 meters.
