Answer:
C. 24pi cu ft.
Step-by-step explanation:
The equation to find the volume of a cone is v=pi r^2 h/3. So, just substitute the given information to the equation:
pi=3.14; r=6; h=2
V= pi 6^2 2/3 > V= pi(36) 2/3 > V=113.04 2/3 > V=75.36
Then you can go through all the answers and multiply them by 3.14.
6* 3.14=18.84; A is wrong
18* 3.14=56.52; B is wrong
24* 3.14=75.36; C is correct
48* 3.14=150.72; D is wrong
Now we know that the answer is C. 24pi cu ft.
These are difficult. You'll have 3 equations with 3 unknowns in the end to solve in order to get the coefficients right. The standard form for a circle with this type of info is
. We have 3 points with different x and y coordinates that we will sub in to get these 3 equations we seek. First point (29, 1):
. This simplifies down to 842+29D + E + F =0. That's the first of 3 equations. Next point (-19, 1):
which simplifies down to 362-19D+E+F=0. That's the second equation. Last point (-2, 18):
. Which simplifies down to 328-2D+18E+F=0. That's the 3rd equation. In all of these move the constants over to the other side of the equals sign. 29D+E+F= -842; -19D+E+F= -362; -2D+18E+F= -328. Take the first 2 equations and solve for D. Do this multiplying one of them by -1 to get a set of equations that are 29D+E+F= -842 and 19D-E-F= 362. Solve this by elimination and the E and the F cancel each other out leaving you with 48D= -480 and D = -10. Now take the second 2 equations and sub in the value for D you just found and work on eliminating either E or F. -19(-10) +E+F= -362 which simplifies to 190+E+F= -362; -2(-10)+18E+F= -328 simplifies to 20+18E+F= -328. Move the constants from the left to the right by subtraction to get a set of equations that is E+F= -552 and 18E+F= -348.Solve that first equation for E: E=-552-F and sub it into the second equatiion. 18(-552-F)+F= -348 and F= -564. Now let's go back to E+F= -552 and sub in our F of -564 to find that E = 12. Therefore, our equation, when all is said and done an hour later, is
. Not sure if that's the form your teacher wants it in, but that's standard. Ugh.
Answer:
stupid
Step-by-step explanation:
rat
I didn't understand your question ..
(30*6) / (2*5) = 180/10 = 18 tiles