I am not quite sure what the question asks for,
But this is what i assume it wants:
Cos A= 0.6489
In this given one, we basically find the size of the angle A
we do cosine inverse on both sides to get the size of the angle A

: It looks like this in the calculator

× cos A=

(0.6489)
(

and cos cancels out)
A=

(0.6489)
A=49.54°
check:
cos 49.54=0.6489 (its right!)
Answer:
<h2>2. (0, -4)</h2>
Step-by-step explanation:

Answer:
2y
Step-by-step explanation:

How to comparan? Not sure
(3+x)+x=10.5
Simplify
2x = 7.5
x = 3.75
Plug in for x
(3 + 3.75) + 3.75 = 10.5
6.75 + 3.75 = 10.5
The heavier packet of fruit is 6.75 kg.