Least: a thousand squared (31.6)
population of ohio (11.61 mil)
# of seconds in a year (31.5 mil)
99 x 99 x 99 x 99 (96 mil)
population of u.s. (323.1 mil)
greatest: days since the 1st january 1st (no one knows when the 1st jan 1st was)

4 0

3 years ago

2.8, 3.4, 4.0, 4.6, . . . Write an equation for the nth term of the arithmetic sequence. Then find a50.

vova2212 [387]

Answer:

a_n = 2.2 + 0.6 n

a_50 = 32.2

Step-by-step explanation:

What's the common difference of this series?

$a_1 = 2.8$

$a_2 = 3.4$

Common difference = $a_2 - a_1 = 3.4 - 2.8 = 0.6$ .

Expression for the nth term:

$a_n = a_1 + (n - 1) \cdot\text{Common Difference} \\\phantom{a_n } = 2.8 + 0.6 \; (n-1) \\\phantom{a_n} = 2.8 + 0.6 \; n - 0.6\\\phantom{a_n} = 2.2 + 0.6\; n$

n = 50 for the fiftieth term. Therefore

$a_{50} = 2.2 + 0.6 \times 50 = 32.2$ .

6 0

3 years ago

Use logarithms to solve the problem. Find the interest rate needed for an investment of $5800 to double in 5 years if interest i

Semmy [17]

Answer:

14.86%

Step-by-step explanation:

The principal = $5800

Time = 5 years

Amount = $ 11600

From;

A= P(1 + r)^n

Substituting values;

11600=5800(1 + r)^5

Rate= (11600/5800)^1/5 - 1

Rate= 0.1486

Therefore

Rate= 14.86%

7 0

3 years ago

Express 5% as a decimal number.

Scrat [10]

Answer:

.05

Step-by-step explanation:

.05 as a decimal is 5% of 1

3 0

3 years ago

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