F(x) = 4 - X What is f(-3)? show work

Mathematics

1 answer:

Arturiano [62]3 years ago

6 0

Answer:

Step-by-step explanation:

By using the formula you just need to place -3 where X is being that X will represent F. After placing -3 where it needs to be it should look like this:

4-(-3)

Remove the parathesis and whenever there is a - in front of - in a parathesis you need to change the sign:

4+3

Add the numbers and you get:

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Which property would be useful in proving that the product of two rational numbers is ALWAYS rational? A) a b + c d = ad + bc bd

Mademuasel [1]

Answer:

Step-by-step explanation:

So we need to understand what is rational numbers?

Rational number which can be written under this form: $\frac{x}{y}$ when x any are both integers and y $\neq 0$

The question here is : Which property would be useful in proving that the product of two rational numbers. In math, when we talk about the product of at least two number, it implies to the multiplication in the operation.

Here, only answer C: $\frac{a}{b} *\frac{c}{d} = \frac{ac}{bd}$ with the condition $b\neq 0 and d \neq 0$ and a, b, c and d are integers. Product of two integers is always an integer..