Answer:
x=15/4,y=-8.25
Step-by-step explanation:
Well to begin with it make both y's equal so multiply the first equation by 3 making it into: 6.6x+3y=-12. next subtract this new equation by the other one making it one equation as, 1.6x=-6, simplify to get: x=15/4, or 3.75 input that into one of the equations the secound one would be easier to make it 18.75+3y=-6 simplify again, 3y=-24.75 than you get y as y=-8.25
Diameter = 22 mm
Radius = diameter/2 = 22/2 = 11 mm
Area = pi r^2
Area = pi (11^2) = 380.133 mm^2
No option corresponds to the answer 380.133
If we round off 380.133 and 379.94 it then becomes 380. So answer D.
Heat touching the surface of the ice cube causes it to melt. So a cube with larger surface area will allow more contact with the heat as compared to the cube with small surface area.
If the amount of heat that is being transferred to the ice cube from the surrounding environment is more, it will melt more quickly. If the ice cube melts more quickly it cannot serve its purpose i.e. to cool down the liquid it is dipped into.
Therefore, for better results, the surface area of the ice cube should be less, so that less heat touches its surface and the process of melting is slow.
Answer:
B
Step-by-step explanation:
Hello!
You look at the table and see what graph matches the data
0-4 = 5
We look for the graphs that of 0-4 at 5
That gives us B or C
We look at the next values
5-9 = 10
We look for the graph that has 5-9 equal to 10
That gives us the answer of B
The answer is B
Hope this helps!
