Answer:
its a
Step-by-step explanation:
<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.
43.26 if u put the percent as a decimal and multiple with 42 then add 1.26 to 42.00
Answer:
Step-by-step explanation:
we know that
The compound interest formula is equal to
where
A is the Final Investment Value
P is the Principal amount of money to be invested
r is the rate of interest in decimal
t is Number of Time Periods
n is the number of times interest is compounded per year
in this problem we have
substitute in the formula above
Find out the interest
I=A-P
substitute
It’s 1,250 because u have to find the unit rate so you divide 5,000 by 4 to get 1,250 HOPE THIS HELPS