Answer:
[-9,0]
Step-by-step explanation:
You use brackets to indicate that the numbers, in this case -9 and 0, are included in the interval.
You use parentheses to indicate that the numbers are excluded from the interval.
Since we want to include the numbers in the interval, we use the brackets.
The answer is [-9,0]
Hope this helps!
Answer:
- 8x² + 36xy - 36y²
Step-by-step explanation:
Given
(- 2x + 6y)(4x - 6y)
Each term in the second factor is multiplied by each term in the first factor, that is
- 2x(4x - 6y) + 6y(4x - 6y) ← distribute each parenthesis
= - 8x² + 12xy + 24xy - 36y² ← collect like terms
= - 8x² + 36xy - 36y²
15.4 seconds = 0.00428 hours and 100 meters = 0.062 miles soo the student ran approximately 14.5 mph
Answer:
x = 2
Step-by-step explanation
The main goal of solving this equation is getting the variable by itself.
For me personally, I prefer to have the variable on the left side of the equation, so I am just going to flip it over to look like this:
-6x - 4 = -16
Next, we must eliminate the constant on the left side of the equation, which is the four. So <u>add</u> four to both sides to get rid of the negative four. Remember, what you do to one side, you must also do to the other!
-6x - 4 = -16
<em>+4 +4</em>
Now, we have this:
-6x = -12
But wait! We aren't done yet! There is still the negative six with the variable. To get rid of it, we must divide both sides of the equations by negative six, as a negative divided by a negative is a positive. There is always an imaginary one next to a variable, so if we divide the negative six by itself, we will get one! Then, the variable will be by itself!
-6x = -12
<em>÷-6 ÷-6</em>
Now we have: x = 2
Remember that a negative divided by a negative is a positive, so the answer is 2, <u>not</u> negative two!
.3125 expressed as a fraction is 5/16