Step-by-step explanation:
-9x^2-2x+9x^2+3x
-9x^2+9x^2-2x+3x
-2x+3x
=x
Answer: Angle R is 70 degrees, angle Q is 90 degrees, and the other angle is 19 degrees.
For the missing side I got 9.4
Step-by-step explanation: I got the angles using Tangent and the missing side using the Pythagorean Theorem.
The distance is increasing at a rate that is the speed of the plane multiplied by the cosine of the angle between its flight path and the direct line to the radar station. That cosine is 4/√(3²+4²) = 4/5, so the distance is increasing at
440 mi/h × 4/5 = 352 mi/h
9514 1404 393
Answer:
D. y = -1/3x
Step-by-step explanation:
The line through the origin means the equation will be a proportion of the form y = kx. (You can also see this by looking at the answer choices.) The value of k is ...
k = y/x . . . . . divide the above equation by x
For the given point (x, y) = (-3, 1), the value of k can be seen to be ...
k = 1/-3 = -1/3
Then the equation for the line is ...
y = -1/3x . . . . matches D
Answer:
26 hamburgers.
Step-by-step explanation:
8 2/3=26/3 each hamburger takes 1/3 meat. So 26/3 ÷1/3=26
