Answer:
The answer is "Option C".
Step-by-step explanation:
Given:
That's why choice C is correct.
21 POINTS!Jeff had $20. He spent 3/8 of his money on lunch. How much money does jeff have left?
1 answer:
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Answer:
(10 x 10 18 times)(10 x 10 23 times)
just as a note: when you multiply numbers with exponents and they both have the same base, all you have to do is add the exponents.
Ex:
Answer:
The world population at the beginning of 2019 will be of 7.45 billion people.
Step-by-step explanation:
The world population can be modeled by the following equation.
In which Q(t) is the population in t years after 1980, in billions, Q(0) is the initial population and r is the growth rate.
The world population at the beginning of 1980 was 4.5 billion. Assuming that the population continued to grow at the rate of approximately 1.3%/year.
This means that
So
What will the world population be at the beginning of 2019 ?
2019 - 1980 = 39. So this is Q(39).
The world population at the beginning of 2019 will be of 7.45 billion people.