120°
the sum of the interior angles of a polygon = 180°( n - 2)
where n is the number of sides
here n = 6 ⇒ sum = 180° × 4 = 720°
thus each interior angle = 
= 120°
Exact Form:
√
25^3
Decimal Form:
125
Answer:
$141,557.76
Step-by-step explanation:
Chao bought a boat for 160,000
The value of the boat reduces by 4% every year
Therefore the value of the most at the end of three years can be calculated as follows
= 100%- 4%
= 96%
= 160,000 × 96/100^3
= 160,000 × 0.96^3
= 160,000 × 0.884736
= 141,557.76
Hence the price of the boat after 3 years is 141,557.76
1) The error occurred when you moved the decimal place one spot to the left without changing the exponent of 10 to go along with it.
Not changing the exponent will change the entire value of the answer. By changing 10.35 to 1.035, we made our answer 10 times smaller, so in order to compensate for that, we need to make 10^10 ten times bigger by changing it to 10^11.
2) 10.35 x 10^10 gets changed to:
1.035 x 10^11
3) The strategy we used is to apply proper scientific notation to our answer. We should recognize when we drastically change the value of our original answer.
