Mathematics: How can you use a number line to find the value of (-2) + 5? a. begin at 2 and move 5 units to the left. b. begin at 2 and move 5 units to the right. c. begin at 5 and move 2 units to the left. d. begin at 5 and move 2 units to the right.

How can you use a number line to find the value

Ответ:

alyssadgonzalez

04.03.2020

Mathematics

911,690.

Step-by-step explanation:

Please consider the complete question.

A city has a population of 390,000 people. Suppose that each year the population grows by 6.75%. What will the population be after 13 years? Round your answer the nearest whole number.

We will use exponential growth formula to solve our given problem.

$y=a\cdot (1+r)^x$ , where,

y = Final value,

a = Initial value,

r = Growth rate in decimal form,

$6.75\%=\frac{6.75}{100}=0.0675$

$y=390,000\cdot (1+0.0675)^x$

$y=390,000\cdot (1.0675)^x$

To find the population after 13 years, we will substitute x=13 in population growth equation as:

$y=390,000\cdot (1.0675)^{13}$

$y=390,000\cdot 2.3376661492982871$

y=911689.798226331969

Upon rounding to nearest whole number, we will get:

$y\approx 911,690$

Therefore, the population of the city after 13 years would be 911,690.

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How can you use a number line to find the value of (-2) + 5?
a. begin at 2 and move 5 units to the left.
b. begin at 2 and move 5 units to the right.
c. begin at 5 and move 2 units to the left.
d. begin at 5 and move 2 units to the right.

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