Answer:
4561.42
Step-by-step explanation:
An equilateral triangle has 3 sides of equal length
find the length of 1 side and that is the length of te other 2 sides
so find the length and times 3
we need to find the distance betwen the points (-8,-5) and (3,7)
distance between the points (x1,y1) and (x2,y2) is

so
distance between (-8,-5) and (3,7) is




the distance is √265
the perimiter is 3√265 units
Answer:
No, the student is not correct. The correct expression is 9(n+13).
Step-by-step explanation:
"9 times the sum of a number and 13" means you must multiply 9 by the sum, not just by the number. 9n + 13 would be "the sum of 9 times a number and 13." Slightly different wording.
The answer is: 75.24/9.9=7.6
Answer:
Step-by-step explanation:
x²+6x+9=(x+3)²