Answer:
0 and 40
Step-by-step explanation:
First expression: 4*5 - (22 - 2). We must do work inside parentheses before any other work. This, we have 4*5 - (20), which simplifies to 20 - 20 = 0
Second expression: (18 - 3) + (32 - 7 becomes (15) + 25, or 40.
<span>2x - 5y = -5
(5,3)
2(5) - 5(3) = -5
10 - 15 = -5
-5 = -5
Therefore (5,3) is a solution to 2x - 5y = -5</span>
For a geometric sequence;
a(n) = a1*r^(n-1)
Where
a(n) = nth term
a1 = first term
r = common ratio
n = 0,1,2,3,4,5, ... n
To establish which graphs agree with this formula, each graph should be tested separately as follows:
Graph A:
a2 = 9
Then
9 = a1*(1/3)^(2-1) =1/3a1 => a1 = 3*9 = 27
Sequence:
a1 = 27
a2 = 9
a3 = 27*(1/3)^(3-1) = 3
a4 = 27*(1/3)^(4-1) = 1
These are the same values shown and thus this graph corresponds to geometric sequence.
Graph B:
a1 = 12
a2 = 12*(1/3)^(2-1) = 4
a3 = 12*(1/3)(3-1) = 4/3
a4 = 12*(1/3)^(4-1) = 4/9
These are the values shown by the graph and thus it corresponds with geometric sequence.
Graph C:
a1 = 3+3/2 = 9/2
a2 = (9/2)*(1/3)^1 = 3/2
a3 = (9/2)*(1/3)^2 = 1/2
a4 = (9/2)*(1/3)^3 = 1/6
a0 = (9/2)*(1/3)^-1 = 13.5 (this is not the case as the graph shows a0 = 12)
Therefore, this graph does not correspond to geometric sequence.
Graph D:
a1 = 4
a2 = 4*(1/3)^1 = 4/3
a3 = 4*(1/3)^2 = 4/9
a4 = 4*(1/3)^3 = 4/27
a0 = 12
This graph seems to agree with values of geometric sequence and thus corresponds to geometric sequence.
Therefore, graphs A, B, and D corresponds with geometric sequence.
She Bought 23 shirts because if you do 400-50 you get 350 the / by 15 wich give you 23.333333ect
If you would like to know how much money did they collect in total, you can calculate this using the following steps:<span>
Travis ... t = $43
Jessica ... j
Robin ... r
120% of j is t
120% * j = 43
120/100 * j = 43
j = 43 * 100 / 120
j = $35.83
r = 135% of t = 135% * 43 = 135/100 * 43
= $58.05
t + j + r = $43 + $35.83 + $58.05 = $136.88</span>
<span>The correct result would be C. $136.88.</span>