Surface = 2 x PI x r x H + 2 x PI x r^2
= 2 x r x h + 2 x r^2
= 2 x 6 x 12 + 2 x 6^2
= 144 + 72
= 216 PI in^2
Answer is A
Answer:
Im positive that u wrote the formula wrong, theres no dot on a formula. What I understand on how to count each molecules is by the following
1) The coefficient in front of the molecules serves a type of multiplier, lets say 3 CO2, you take the 3 and multiply to each atom, so it would be 3 C and with O you do 3x2 cause 2 oxygen atom and it would become 6 O.
2) For the bracket lets say (CH3)2, Its the same thing as coefficient, the subscript 2 serves as a mulitplier, so there would br 2 C and 6 H
3) What happens if you have both the coefficient and subscript. Well, lets take an example of 2(NH3)2, you multiply everything together. So by doing the example, N would be 2 x 1( because theres 1 N) x 2( this being the subscript), which would be 4 N. For H, its 2 x 3(Because theres 3 H atoms) x 2(this being the subscript), which is equals to 12 H atoms.
Hope I didnt confuse you that much and asnwered your questipn, good luck in your future test. : )
Answer:
4,3
Step-by-step explanation:
4,3
Only one it can be is C.....because on ur graph, both lines are intersecting the y axis at 2.....and both ur inequalities, y <= -3x + 2 and y < = -x + 2....the 2's are ur y intercepts. Its the only inequalities in ur answer choices that have y intercepts of 2.
The sequence is given by the formula
, where n is the value of the n'th term in the sequence.
Thus,
T(1) calculates the value of the 1st term
T(2) calculates the value of the 2nd term
T(3) calculates the value of the 3rd term
.
.
an so on
the value of the third term is T(3)=3*3-1=9-1=8
Answer: 8
