Answer:
90 divided by 10
Step-by-step explanation:
This is the answer because when you divide the 90 and the amount of students in each van(10) you would get the equation needed to see how many students are in each van.
Answer:
y=-4x+5
Step-by-step explanation:
Since a calculator is involved in finding the answer, it makes sense to me to use a calculator capable of adding vectors.
The airplane's ground speed is 158 mph, and its heading is 205.3°.
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A diagram can be helpful. You have enough information to determine two sides of a triangle and the angle between them. This makes using the Law of Cosines feasible for determining the resultant (r) of adding the two vectors.
.. r^2 = 165^2 +15^2 -2*165*15*cos(60°) = 24975
.. r = √24975 ≈ 158.03
Then the angle β between the plane's heading and its actual direction can be found from the Law of Sines
.. β = arcsin(15/158.03*sin(60°)) = 4.7°
Thus the actual direction of the airplane is 210° -4.7° = 205.3°.
The ground speed and course of the plane are 158 mph @ 205.3°.
Answer:
![-10x^{2}-9x-6](https://tex.z-dn.net/?f=-10x%5E%7B2%7D-9x-6)
Step-by-step explanation:
Combining like terms:
![-7x^{2}-3x^{2}-10x+x-6](https://tex.z-dn.net/?f=-7x%5E%7B2%7D-3x%5E%7B2%7D-10x%2Bx-6)
![-10x^{2}-9x-6](https://tex.z-dn.net/?f=-10x%5E%7B2%7D-9x-6)
Answer:
Of course the answer is 2.
It says 'Double'!