Olivia had math and reading homework tonight. Olivia can solve each math problem in 1 minute and she can read each page in 1.5 m
1 answer:
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Answer:
Step-by-step explanation:
we know that
The equation of a exponential growth function is given by
where
y is the population
x is the time in years since year 2015
a is the initial value
r is the rate of change
we have
substitute
In the year 2040 the value of x is equal to
substitute
Answer:
I think answer for ur question is 60
Answer:
3.15 seconds is the answer.
<u>Explanation</u>
when the ball touches the ground, h =0
hence,
0=255-21t-16t²
16t²+21t-225=0
here a=16 ,b=21, c= -225
time cannot be negative, hence t = -4.46 can be avoided
The ball takes 3.15 seconds to hit the ground.