<u>Prove that:</u>
<u>Proof: </u>
We know that, by Law of Cosines,
<u>Taking</u><u> </u><u>LHS</u>
<em>Substituting</em> the value of <em>cos A, cos B and cos C,</em>
<em>On combining the fractions,</em>
<em>Regrouping the terms,</em>
LHS = RHS proved.
421/10= 42.1 vans since you can’t bring a 0.1 van you’ll have to bring a whole extra van so 43 vans
answer: one person will be in the partially full van
Answer:$21.20
Step-by-step explanation:
5.30x and x =4
5.30 times 4 is 21.20
<span>The arc length is 8</span>π.
The circumference of the circle is 2πr = 9<span>π.
</span>
so
cross-multiply: 9x = 360(8)
x = 320