Answer:
Zero! NO SOLUTION
Step-by-step explanation:
Try solving it.
-46x - 23 = 46x + 23
Divide out the 23. :-)
-2x - 1 = 2x + 1
(-1) * (2x + 1) = 2x + 1
(-1) = 1
False, NO SOLUTION
190x + 210x = 2000
400x = 2000 <-- Combine like terms
x = 5
In 5 hours they will separated by 2000 miles.
This is a problem that has to do with absolute value. Absolute value means the distance from that number to 0, on a number line.
a: |-8|<|8|
The distance from both -8 and 8 to zero, is positive 8 steps. So |-8|=8, as well as
|8|=8.
8<8 is incorrect.
c: |-7|=-7
7=-7
This is also incorrect.
d: |12|>|-15|
12>15
This inequality is wrong.
Therefore, the only right equation is choice B.
|-2|>1
2>1
This inequality is correct. Two is larger than one.
Answer:
(x + 7)(x - 2)
Step-by-step explanation:
To do this, set up "templates." To set these up, look at the signs on the second and third numbers. The second number is positive, and the third is negative.
The third number being negative means that the factored phrases will have different signs for the integers. The second number being positive means that the the larger number will be positive.
The "templates" are (x + )(x - ).
Next, fin the factors of 14 (1, 14 and 2, 7)
2 and 7 are the pair that will give us the second number, 5. With the larger number being 7, this is the positive number.
(x + 7)(x - 2)
You can check your answer using FOIL, which is the order in which you multiply the numbers. Front, outer, inner, and last.
Front: x²
Outer: -2x
Inner: 7x
Last: -14
Add it all up.
x² + (-2x) + 7x + (-14)
x² + 5x - 14
Alright, so the book is on sale for 4 dollars right? So do 32/4 and that will be 8, so the percent is 8%