If 4 out of 65 people were given free DVDs then that would mean that 28 out of 455 people would get free DVDs
Answer:
a. True. Rational numbers are closed under the sum operation, therefore, the sum of two rational numbers is always a rational number.
b. True. irrational numbers are closed under the sum operation, therefore, the sum of two irrationals numbers is always a irrational number.
c. True. The square of a real number is always a number greater than zero, and the sum of two numbers greater than zero is greater than zero.
d. True. The real numbers are closed under the product operation, then if a and b are reals numbers, the product ab is also a real number.
Step-by-step explanation:
Subtract 570,000 from 656,000
656,000-570,000= 86,000 sq miles are not land area.
This expression is awkward. Your (1/4)^--2 should be written (1/4)^(-2).
Also, your x 2 should be written x^2 (the square of x).
But maybe that's not what you meant!
Your apparent use of "x" to indicate "multiply" makes things harder and more confusing. Please use " * " ONLY to denote multiplication.
Let's try again. Here's what I think I see:
(1/4)^(-2) - 1*2*1^(-1) and here is the evaluation:
16 - 2 = 32
Practice typing in expressions like these and then try to get some critique from your teacher regarding where you are correct and where you are not.