The pollution level in 1980 was 7.13 to the nearest hundredth ⇒ answer c
Step-by-step explanation:
The function
, where
- p(t) is the population level at any time t
- t is the number of years after 1970
We need to find the pollution level in 1980
∵ 
∵ t is the number of years after 1970
∴ t = 1980 - 1970 = 10 years
- Substitute the value of t in the equation above
∴ 
∴ 
∴ p(t) = 7.13214 ≅ 7.13 to the nearest hundredth
The pollution level in 1980 was 7.13 to the nearest hundredth
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Answer:
I do not know but trying to help I think it is D
Step-by-step explanation:
Answer:
2
Step-by-step explanation:
There are 4 x's at 1 mile so he took 4 1 mile hikes
There are 2 x's at 1 1/4 mile so he took 2 1 1/4 mile hikes
We want to know how many more 1 mile hikes than 1 1/4 mile hikes
4 -2 = 2
Answer:
Step-by-step explanation:
A third degree polynomial has a <em>total of three roots</em>, real and imaginary combined.
If it already has 2 real roots, -4 and +4, then it has to have three real roots because imaginary roots come in conjugate pairs, i.e. they come in even numbers.