Answer:
x+ 1
d+4
y+3
Step-by-step explanation:
<span>When given an algebraic expression involving subtraction why
is it best to rewrite the expression using addition before identifying the terms
is because you can consider the basic rule of operations such as the PEMDAS or
simply the MDAS in computing and calculating equations. Hence Addition comes
before Subtraction. For example given -3 + 5, you can arrange this set into a
simpler one such as 5 – 3 = 2. You aim to have a positive sum rather than a
negative value sum. </span>
Answer:
24.5 points
8 points
Step-by-step explanation:
khan academy
You are basically finding the hypotenuse of a triangle with side lengths of 120 yards and 120 yards.
Using the equation a^2 + b^2 = c^2, solve for c (hypotenuse) where a and b are the side lengths (120 yards).
a^2 + b^2 = c^2
square root(a^2 + b^2) = c
square root (120^2 + 120^2) = c
square root (120^2 + 120^2) = c
square root (14400 + 14400) =c
square root (28800) = 169.7, rounded up to 170 yards of fencing needed.
