Answer: 29%
Step-by-step explanation: 220 out of 310 attended. This mean the error percentage is 90/310. Dividing 90 by 310, we get the answer of around 29%.
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1st card : 3 steps forward
2nd card: 3 steps back
3rd card: 4 steps back
4th card: 5 steps forward
5th card: 10 steps forward
6th card: 7 steps back
Total steps : 3 + 3 + 4 +5 +10 + 7 = 32
Answer: D) 32
Using the concept of number line, the solution to the questions posed are :
- <em>Pool</em><em> </em><em>surface</em><em> </em>
- <em>The</em><em> </em><em>height</em><em> </em><em>of</em><em> </em><em>slide</em><em> </em><em>is</em><em> </em><em>12</em><em> </em><em>meters</em><em> </em><em>above</em><em> </em><em>the</em><em> </em><em>pool</em><em> </em><em>surface</em><em> </em>
- <em>The</em><em> </em><em>level</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>bottom</em><em> </em><em>of</em><em> </em><em>the</em><em> </em><em>pole</em><em> </em><em>should</em><em> </em><em>be</em><em> </em><em>marked</em><em> </em><em>as</em><em> </em><em>-</em><em>3</em>
The pool surface would be treated as sea level surface, such that, position below are marked as negative and position above are marked as positive.
- Therefore, the surface of the pool is <em>marked</em><em> </em>as the sea level position, 0.
- Since the slide is above the surface of the pool, it's value will the positive. Hence, the height of the slide is 12 feets.
- The marked position is below the <em>pool</em><em> </em><em>surface</em><em>,</em><em> </em>hence, it will take up a negative value of - 3 feets.
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Answer:
It would be 490 or 108
Step-by-step explanation:
multiply the perimeter thats all
Answer:
The population in 2015 will be 165 million.
Step-by-step explanation:
The exponential growth formula is given by:
Where:
a: is the initial population
r: is the rate of increase
Δt: is the time
With the initial information we can find the rate:
Using logarithm:
![ln(151) = ln(145) + 8[ln(1 + r)]](https://tex.z-dn.net/?f=%20ln%28151%29%20%3D%20ln%28145%29%20%2B%208%5Bln%281%20%2B%20r%29%5D%20)
Using exponential:
Now, we can find the estimated population in 2015:
Therefore, the population in 2015 will be 165 million.
I hope it helps you!
