Answer:
19
Step-by-step explanation:
Answer:
Multiplication.
Step-by-step explanation:
Given:

Also 
Solution:
It has been given that value of x is 5.
So if we substitute the value of x in given equation the we get;

Now by PEDMAS, The first operation perform will be the terms in parenthesis and in that too the first will be multiplication.
so we get;

Now again Solving the terms in parenthesis we get;

Now the next operation will be addition then we get;

And finally performing subtraction we get;

Hence The first operation performed in given equation is multiplication.
Sum of angles in a triangle is 180 degrees.
2x + 2x + 8x = 180
12x = 180
x = 180/12 = 15
Therefore, the smallest angle mmeasures 2(15) = 30 degrees.
Your greatest common factor is 9.
9 * 2 = 18
9 * 4 = 36
9 * 5 = 45
Answer:
42 cubic units
Step-by-step explanation:
7 x 3 x 2 = 21 x 2 = 42