X=28
It is simple just do percentases and then all the outside stuff
<h3>
Answer: A) 52 square inches</h3>
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Explanation:
a = 8, b = 13, and c = 15 are the sides of the triangle
s = (a+b+c)/2 = (8+13+15)/2 = 18 is the semi-perimeter, aka half the perimeter.
Those values are then plugged into Heron's Formula below
The triangular plaque has an area of approximately 52 square inches.
Answer:
y^2-5y-4
Step-by-step explanation:
Let y^2-5y+1 =A
Required polynomial=B
A-B=5
B=A-5
B=y^2-5y+1 -5
B=y^2-5y-4
Hence,Required polynomial=y^2-5y-4
You solve this problem via PEMDAS (Parentheses Exponents Multiplication Division Addition Subtraction.)
To start you simplify everything inside parentheses.
9+3*5+5^2
Then you simplify the exponents.
9+3*5+25
Next, you simplify the multiplication signs.
9+15+25
Then you simplify all the addition signs from left to right.
24+25
49
Answer:
170
Step-by-step explanation:
You add them together, then convert to octal.
(You're doing cyber discovery too?)
