Answer: Choice C
The equation is y = 4x-3
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How I got that answer:
The first row has x = 0 and y = -3
So the answer is narrowed to either A or C. These answer choices have a y intercept of -3. Choices B and D have a y intercept of 3.
We need the slope now. Pick any two points from the table. I'm going to pick (0,-3) and (2,5) from the first two rows.
Slope formula:
m = (y2-y1)/(x2-x1)
m = (5-(-3))/(2-0)
m = (5+3)/(2-0)
m = 8/2
m = 4
The slope is 4, so the equation is y = 4x-3
That's why the answer is choice C
(we can rule out choice A as that slope is 1)
Answer:
![d_{n+1}=d_n\,+\,2^n](https://tex.z-dn.net/?f=d_%7Bn%2B1%7D%3Dd_n%5C%2C%2B%5C%2C2%5En)
with ![d_1=81](https://tex.z-dn.net/?f=d_1%3D81)
Step-by-step explanation:
We can study what happens day by day starting with day one (1) to understand how the recursive relation can be constructed:
Day # Number of stamps What is added relative to previous day
1 d1 = 80 + 1 = 81
2 d2 = 81 + 2 = 83 d2 = d1 + 2
3 d3 = 83 + 4 = 87 d3 = d2 + ![2^2](https://tex.z-dn.net/?f=2%5E2)
4 d4 = 87 + 8 = 95 d4 = d3 + ![2^3](https://tex.z-dn.net/?f=2%5E3)
5 d5 = 95 + 16 = 111 d5 = d4 + ![2^4](https://tex.z-dn.net/?f=2%5E4)
6 d6 = 111 + 32 = 143 d6 = d5 + ![2^2](https://tex.z-dn.net/?f=2%5E2)
(n+1) d(n+1) = dn + ![2^n](https://tex.z-dn.net/?f=2%5En)
Answer:
Step-by-step explanation:
3
x
1000
+
30033/1000
Thats the answer hopes rhis helps
.00009 seconds, it is 27,000/300,000,000