Answer:
1. The third one
2. The first one
3.The fourth one
4. the first one
the thrid one
Step-by-step explanation:
Answer:
Step-by-step explanation:
(8x-3)^2-x^2
64x^2-48x+9-x^2
63x^2-48x+9
3375/225=15
13500/15=900 books
The answer is D
Answer:
12.50x less than or equal to $200
Step-by-step explanation:
9514 1404 393
Answer:
78.5 km
Step-by-step explanation:
Measured at the airport, the angle between the two planes is ...
180° -60° -50° = 70°
The law of cosines tells us the distance between the planes is ...
d = √(50² +80² -2·50·80·cos(70°)) ≈ √6163.84 ≈ 78.5 . . . km
The planes are about 78.5 km apart.