A). √36 = +6 and -6 . Rational
B). √49 = +7 and -7 . Rational
C). √13 = +3.60555... and -3.60555... . Decimal never ends.
Irrational
D). √121 = +11 and -11 . Rational
Answer:
Energy equals mass times the
E = mc2. It's the world's most famous equation, but what does it really mean? "Energy equals mass times the speed of light squared." On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.
Answer:
3(8+2a)
Step-by-step explanation:
You just want to simplify the equations to see if they equal 6a+24, which in this case 3(8+2a) does. The other two equal something else, hopefully this helps :)
Answer: The probability is about 0.2%.
The probability of flipping heads one time is 0.5, 50% or 1/2.
To flip heads 9 times in a row, we have to multiply 1/2 by itself 9 times.
(1/2)^9 = 1/512 or about 0.2%
It should only happen once every 512 times.
20 watches are made according to the cost of 385 dollars
