Answer:
speed: .3 kilometers a minute. Distance traveled in 10 minutes: 3 kilometers
Answer:
The answer to your question is:
Step-by-step explanation:
12.-
x² - 6x = 5
x² - 6x + (3)² = 5 + (3)²
x² - 6x + 9 = 5 + 9
(x - 3)² = 14
13.- x² - 6x = 12
x² - 6x + (3)² = 12 + (3)²
x² - 6x + 9 = 12 + 9
(x - 3)² = 21
x - 3 = ±√21
x1 = √21 + 3 x2 = -√21 + 3
x1 = 7.58 x2 = -1.58
14.- 2x² - 24x = - 20 Divide by 2
x² - 12 x = -10
x² - 12x + (6)² = - 10 + (6)²
x² - 12x + 36 = - 10 + 36
( x - 6) ² = 26
x - 6 = ±√26
x1 = √26 + 6 x2 = -√26 + 6
x1 = 11.1 x2 = 0.9
The guarantee which should be given by the manufacturer in years is; 0.405years
<h3>Percentages and Averages</h3>
Since the average life of a scooter is 12 years with a standard deviation of 1.5 years.
Hence, the maximum life of any electric scooter is 13.5 years.
On this note, to offer a guarantee with the intention to replace only 3% of the scooters;
We must evaluate 3% of 13.5 years as follows;
- Guarantee offer = 3% of 13.5 years
- Guarantee offer = (3/100) × 13.5
Guarantee offer = 0.405 years
Read more on percentages;
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it's both a function and relation a function because it has independent variable and dependent variable and it's a relation because there is a relationship between the values