Answer: 35
Step-by-step explanation:
The sum of interior angles of a triangle is 180°.
40 + 2a + 2a = 180
4a + 40 = 180
4a = 140
a = 35
I hope this helps you
121=11.11
a^2-11^2
(a-11). (a+11)
a.a+11a-11a-11.11
a^2+0-121
a^2-121
PEMDAS: parentheses, exponents, multiplication, division, addition, subtraction. That tells you the order you solve problems.
You start by working each part of the problem in parentheses. You multiply before adding/subtracting.
I’ve attached a picture. Please ask any questions.
The tiles have the following approximate values.
-1.22
0.71
-0.71
0
The dragging and dropping indicated will put them in order largest to smallest.