⇒To get the difference we subtract.
⇒To get the sum we add.
Goodluck!!
Part B seems to be missing, but I think I have enough information to be able to answer.
Let's say we had two numbers x and y. Let x be rational and y be irrational.
If x is some nonzero number, then x*y is irrational. The proof for this is a bit lengthy so I'll leave it out.
For instance,
x = 2 is rational, y = sqrt(3) is irrational, x*y = 2*sqrt(3) is irrational.
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If we made x = 0, then
x*y = 0*y = 0
This is true for any value of y that we want. The y value doesnt even have to be irrational. It can be any real number.
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So the distinction is that if x = 0, then x*y = 0 is rational since 0 is rational. Otherwise, x*y is irrational.
Answer:
Q4.1/4
Q5.2/5
Step-by-step explanation:
Hope I helped
First, I will explain it.
1. Multiply the #s inside the parenthesis Distributive Property.
It now looks like this: 5x-15-2x-2=4
2. Add like terms.
It now looks like this: 3x-17=4
3. Isolate the variable x.
It now looks like this: 3x=21
4. Now solve for x.
The answer is D, x=7.
(p.s. I won't give a stranger my number.)
Answer:
48 mph
Step-by-step explanation:
72 (miles) / 1.5 (hours)
= 48
48 mph