The regular rules of arithmetic apply to function values. Addition and multiplication are commutative, but subtraction and division are not.
The ring operator, signifying a function of a function, is not commutative, either. A simple example can illustrate this:
f(x) = 3
g(x) = x²
(f◦g)(x) = f(g(x)) = f(x²) = 3
(g◦f)(x) = g(f(x)) = g(3) = 3² = 9 . . . . . not equal to 3
The only appropriate choice for Question 19 is ...
A. (f+g)(x) = (g+f)(x)
Multiply the 6 (the denominator), and the 13 (the whole number). To this product, add the 5 (the numerator).
<span>It then gives you 83, which is now the numerator for the improper fraction, and use the 6 as the denominator for the improper fraction.
Therefore the mixed number (13 6/5) is now 83/6 written as an improper fraction.</span>
Answer: √5
2.7 is a rational number because it's a terminating decimal which means that the decimal does end and all terminating decimals are rational numbers.
-3 is a rational number because it's an
integer and all integers are rational.
√4 is rational because it's a perfect square which means that a number can be multiplied by itself to get 4 and that number is 2.
√5 is no rational! It's impossible to find a whole number multiplied by itself to give us 5 which means that it's
non-terminating and non-repeating.
The expression for P(red) is (x - 5)/x
<h3>How to determine the expression?</h3>
The given parameters are:
Apple = x
Green = 5
The number of red apples is:
Red = Apple - Green
This gives
Red = x - 5
The expression for P(red) is then calculated as:
P(Red) = Red/Apple
This gives
P(Red) = (x - 5)/x
Hence, the expression for P(red) is (x - 5)/x
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Answer:
first statement
Step-by-step explanation:
The absolute value of - 6 is | - 6 | = | 6 | = 6
The absolute value is always positive as it is a measure of the distance from the origin to - 6 and distance is always positive.
It is not the distance between 6 and - 6 on the number line.