Answer:
The answer is -1.8
Step-by-step explanation:
5 x -1.8 = -9 = -9 divided by -1.8 = 5
The answer is a.0
Concentric means these circles would have the same center, thus, the smaller circle must be inside the bigger circle. Any tangent line to the smaller circle wont be a tangent line to the bigger circle, since that tangent line would intersect at the bigger circle at 2 points. Any tangent line to the big circle will not touch the small circle... so the answer would be 0.
Answer:
The angle between the two blades is 120 degree.
Step-by-step explanation:
number of blades = 3
The blades are equally spaced.
The total angle around a circle is 360 degree.
So, the angle between the two blades is given by
![\theta =\frac{360}{n}\\\theta =\frac{360}{3} = 120^{o}](https://tex.z-dn.net/?f=%5Ctheta%20%3D%5Cfrac%7B360%7D%7Bn%7D%5C%5C%5Ctheta%20%3D%5Cfrac%7B360%7D%7B3%7D%20%3D%20120%5E%7Bo%7D)
Three consecutive numbers can be written as x, x+1, and x+2, but they also can be written x, x-1, and x-2 where x is the biggest number.
sum means adding... so
![x + x - 1 + x - 2 = 243](https://tex.z-dn.net/?f=x%20%2B%20x%20-%201%20%2B%20x%20-%202%20%3D%20243)
combine like terms and solve for x!
Answer:
The same ratio indicates that there is a proportional relationship between y and x.
Step-by-step explanation:
We know when y varies directly with x, the equation is
y ∝ x
![y=kx](https://tex.z-dn.net/?f=y%3Dkx)
![k\:=\:\frac{y}{x}](https://tex.z-dn.net/?f=k%5C%3A%3D%5C%3A%5Cfrac%7By%7D%7Bx%7D)
Here,
k is the constant of proportionality.
The ratio y/x indicates that k is a constant of proportionality.
Thus, the same ratio indicates that there is a proportional relationship between y and x.
When x increases, y increases, and when y decreases, x also decreases.