Two thirds is equal to 66.666666 etc. percent so 64 is pretty close to 66 so I would consider it right.
Answer:
The slope of the line is 
Step-by-step explanation:
For any line 
, a line that is perpendicular to it is 
.
Therefore the slope of the perpendicular line is 
.
For our case 
therefore the slope of the prependicular is the reciprocal of 
multiplied by 
Answer:
1) 100 ) 15
Step-by-step explanation:
1) 30 to 50 is 20 miles so 5 * 20 is 100
2)20 to 50 is 30 miles so its 150 and 15 to 20 is 5 so 11 *5 is 55
55+150 equals 250 so the answer is 15 miles.
Answer:
a^2 - 25.
Step-by-step explanation:
(5 + a)(-5 + a)
= -25 + 5a - 5a + a^2
= a^2 - 25.
Answer: 0.9
Step-by-step explanation:
