Answer:
12
Step-by-step explanation:
A sequence is given and we need to find the term when it will become -24 . The given sequence is,
9 , 6 , 3 ,0 , . . . . .
Here Common Difference can be calculated by subtracting consecutive terms . So the Common Difference is 6-9 = -3 . Here the nth term is (-24) .Now using the formula to find nth term .
⇒ T_n = a + (n-1)d
⇒ (-24) = 9 + (n-1)(-3)
⇒ -24-9 = (n-1)(-3)
⇒ (n-1) = -33/-3
⇒ n-1 = 11
⇒ n = 11 + 1
⇒ n = 12
<h3>
<u>Hence </u><u>the</u><u> </u><u>requi</u><u>red</u><u> </u><u>number</u><u> </u><u>of</u><u> </u><u>term</u><u> </u><u>is</u><u> </u><u>1</u><u>2</u><u>.</u></h3>
B)Line 1 and 2 - parallel
Line 1 and 3 - perpendicular
Line 2 and 3 - perpendicular
Answer:
it is
Step-by-step explanation:
The number of moles will be simply the number of molecules divided by Avogadro's number, so
3.01
×
10
23
6.02
×
10
23
=
0.5
m
o
l
Since the molar mass of
C
O
2
is
44
g
m
o
l
−
1
, the mass of
C
O
2
will be
22
g
.
Answer:
B. Step 4 is incorrect , it should be 
Step-by-step explanation:
6x-1= -2x+9
Step 1
Collect like terms and change signs if you move anything from one side to the other; 6x+2x = 9+1
Step 2: Add like terms on both sides
8x = 10
Step 3: To remain with just x on one side, divide both sides by 8 and it becomes;
The two 8s cancel each other and you remain with 
Line up the decimal points and multiply right to left ...any missing numbers equal 0
