Well, to write the definition of "Perpendicular lines form right angel" using "if and only if". the sentence would become :
<em>
</em><em>Two lines are perpendicular if and only if they form a right angle
</em><em>
</em><em />Hope this helps
The answer is 7.41717 x 10^4 because you move the decimal to the left 4 spaces
There are 7 ways for it to be and odd sum. Can you figure out the even sums?
The answer is: x = 400
Here's how I got my answer:
Step 1: Subtract .60 from both sides. Leave us with
Step 2: Simplify to . Which leaves us with
Step 3: Subtract 20 from both sides. Which leaves us with
Step 4: Simplify to 80. Which leaves us with
Step 5: Divide both sides by 0.2. Which leaves us with
Step 6: Simplify to 400. Which leaves us with our answer, x = 400