Answer:
1 - 2√7
Step-by-step explanation:
( 4 + √7)(2 - √7)
Open the brackets with
( 4+ √7)
= 4( 2 - √7) + √7(2 - √7)
= 8 - 4√7 + 2√7 - √49
= 8 ( -4 + 2)√7 - √49
= 8 - 2√7 - 7
= 8 - 7 - 2√7
= 1 - 2√7
Answer:
because the area expression can be rewritten as 
which equals 
Step-by-step explanation:
Area of the rectangle 
Since the length of a rectangle is 20 units more than its width.
The correct option is therefore 1.
Integers are whole numbers.
mixed number are whole numbers plus fractions...that when simplified, become improper fractions
2 1/2 = 5/2....this is not an integer or a whole number
3 1/4 = 13/4....same here...not an integer or a whole number
4 1/3 = 13/3...not an integer or a whole number
You can use the slope formula to figure this out, or you can just use common sense.
m(slope)=y2 - y1 / x2 - x1
Two points of the line are (3,1) (5,-3)
(-3 - 1) / (5-3) = -4 / 2 = - 2
Or you can just do rise over run (slope).
The line goes right 1 (run) and down 2 (rise)
Down 2 = -2
-2/1, or -2
-2 is your answer.
