Step-by-step explanation:
Let us consider the task to find the angle between vectors ES and EJ (the first letters are taken to name the vectors).
\overrightarrow{ES} = (4;4) - (4; -3) = \overrightarrow{(0; 7)}
ES
=(4;4)−(4;−3)=
(0;7)
\overrightarrow{EJ} = (-5; -4) - (4; -3) = \overrightarrow{(-9; -1)}
EJ
=(−5;−4)−(4;−3)=
(−9;−1)
cos \alpha=\frac{\overrightarrow{ES}*\overrightarrow{EJ}}{|\overrightarrow{EJ}|*|\overrightarrow{ES}|}cosα=
∣
EJ
∣∗∣
ES
∣
ES
∗
EJ
cos(a) = (0*(-9)+7*(-1)) / (7*9.055) = -0.11043;
a = 96,34°
Solution: 96 degrees.
The answer is x = 2 and y = 3
Can't see the full question :/
Answer:
525
Step-by-step explanation:
25 friends, 21 each. 25*21 is 525.
(25 amigos, comprar 21 rifas. 25*21 es 525) (Rought transaltion)
Answer:
(a) 4:3
(b) 4:7
Step-by-step explanation:
<h2>hope it helps</h2><h2>brainliest please</h2><h2>correct me if I'm wrong</h2>
