9514 1404 393
Answer:
6x^2 +x -12
Step-by-step explanation:
Substitute for A and B and collect terms.
2B +3A
= 2(3x^2 -x +3) +3(x -6) . . . . substitute for A and B
= 6x^2 -2x +6 +3x -18 . . . . . eliminate parentheses
= 6x^2 +x -12 . . . . . . . . . . . . collect terms
4 - (-12) = 16
difference = 16 degrees celcius.
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Answer:
Step-by-step explanation:
Let the volumes of both the spheres be 
and their radii be 
respectively.
(given)
From equations (1) & (2), we have:
Thus, the ratio of the volumes of two spheres would be 2197 : 729.
Answer:
45
Step-by-step explanation:
To find the area of any right triangle, meaning a triangle with a right angle, you use 1/2 base x height
So... here the base is 9 and the height is 10
Therefore: 1/2 x (9) x (10)
1/2 x 90
= 45
Answer: C
Step-by-step explanation:
