Answer:
(x^2)*y
Step-by-step explanation:
Answer: 
Step-by-step explanation:
<u>The goal of the question</u>
Find the value of 2abcosC
<u>Given information</u>
a = 4
b = 3
c = 2
<u>Given formula (Law of Cosine)</u>

<u>Substitute values into the formula (Leave 2abcosC as it is)</u>

<u>Simplify the exponents</u>

<u>Simplify by addition</u>

<u>Add 2abcosC on both sides</u>


<u>Subtract 4 on both sides</u>


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Answer:
Step-by-step explanation:
A' (2,-3)
B' (5,-5)
C' (7,-3)
D' (5,-2)
-3y -21 +8 = -28
-3y -13 = -28
-3y = -15
y= 5
Expression (non-algebraic): 3+2
An equation: 2x +1 = 21
An inequality: 2x > 2+2