M = r + 3
a = 2m......a = 2(r + 3).....a = 2r + 6
m + r + a = 57
(r + 3) + r + (2r + 6) = 57
4r + 9 = 57
4r = 57 - 9
4r = 48
r = 48/4
r = 12.......rahfat is 12
a = 2r + 6
a = 2(12) + 6
a = 24 + 6
a = 30.......aurello is 30
m = r + 3
m = 12 + 3
m = 15 <=== mel is 15
Answer:
A. 111.65
Step-by-step explanation:
This scenario can be interpreted like a triangle ABC where A and B are islands and C is the point from where the captain is 160 miles from island B.
a = 160
b = 260
c = 250
Law of cosines
The internal angle is 68.35°
We have to find the external angle to find the bearing the captain should turn
Using the rule of supplimentary angles:
The external angle = 180 - 68.35 = 111.65°
Therefore, the captain should turn 111.65° so that he would be heading straight towards island B.
Hence, option 1 is correct ..
You write it as 0.5. Just divide both numbers
Answer:
-2
Step-by-step explanation:
The slope of the line can be found using
m = (y2-y1)/ (x2-x1)
= (-4-8)/(5--1)
= (-4-8)/(5+1)
= -12/6
= -2
She walked 11.25 miles because she walked 3.5 mi. the first day, 3.75 mi. the second day, and 4 mi. the third day.