Answer:
the ratio of lengths of the two rods, Aluminum to Invar is 11.27
Step-by-step explanation:
coefficient of linear expansion of aluminum, 
Coefficient of linear expansion of Invar, 
Linear thermal expansion is given as;

The increase in length of Invar is given as;

The increase in length of the Aluminum;


Therefore, the ratio of lengths of the two rods, Aluminum to Invar is 11.27
Answer:
Option B.
Step-by-step explanation:
Obvious. <u>Lets explain:</u>
<em>Option A: It's pretty ease to do. You just need 2 triangles to make a parallelogram, and that's that.</em>
<em>Option B: How can you make a rectangle from triangles-???</em>
<em>Option C: You might think I am wrong, but I am right. Get 6 triangles, then plato, you have a whole hexagon!</em>
<em>Option D: You probably already know this...but you just need three triangles.</em>
It's correct on every school thing.
<h2>
Option B is your answer!</h2>
T = 15.70r
time cost (t) = the price of the bag of rice • the number of bags of rice
Yes because if you do 19.99 times 6 you get 119.94
ANSWER

EXPLANATION
The given parabola has directrix x=2.
This implies that, the parabola is opens in the direction of the negative x-axis because it must open in a negative direction to the directrix.
The equation of such parabola is of the form:

where (h,k)=(-5,8) is the vertex.


But the parabola opens to the left.
p=-7
The equation now becomes

