Answer:
A
Step-by-step explanation:
Answer:
The answer is option D.
<h2>LJ = 3.5</h2>
Step-by-step explanation:
<u>To find LJ we use the sine rule</u>
From the picture
LK / sin J = LJ / sin K
LK = 9
J = 89°
K = 23°
So now LJ is
9 / sin 89° = LJ / sin 23°
<u>Make LJ the subject</u>
That's
LJ = 9 sin 23° / sin 89°
LJ = 3.51
The final answer is
<h3>LJ = 3.5</h3>
Hope this helps you.
Answer:
C) P(1, -26/7)
Step-by-step explanation:
You want the weighted average of A(-4, 2) and B(3,-6) using weights 2 and 5, respectively.
<h3>Weighted average</h3>
Each of the values is multiplied by the corresponding weight, and the sum of those products is divided by the total of the weights to obtain the weighted average.
P = (2A +5B)/(2+5)
P = (2(-4, 2) +5(3, -6))/7 = (-8 +15, 4 -30)/7 = (7, -26)/7
P = (1, -26/7)
The coordinates of P are (1, -26/7).
David's pumpkin cost $8.22
His sister's pumpkin cost $4.98
They paid $13.20
