The average speed of the runner is 12.7 mph and 20.4 km/h
Given that the runner ran 26.2 mile in 2hr and 4 minutes, we start of by converting the time from hours and minutes into minutes and finally hours, since hours is what we need. So, we have
2hr = 120mins
+ 4 mins = 124 mins
124 mins ÷ 60 hour/mins = 2.06 hours.
This means that the runner finished the race in 2.06 hours.
If we are to find the average speed in mile per hour, we have
Average speed = distance ran ÷ time taken
Average speed = 26.2 ÷ 2.06
Average speed = 12.7 mph
From the speed in mph, we can directly convert it to km/hr by saying
1 mph = 1.609 km/h
12.7 mph = 12.7 * 1.609 = 20.4 km/hr
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$2,900 you have to subtract from the $4,000 and it is $1,100 you have left
Answer:
k=20.
Explanation: First we find where f(x) has its local extrema: f'(x)=3x2−10x+3. The critical points are roots of the equation: 3x2−10x+3=0.
Answer:
554,555
Step-by-step explanation:
The series formed by using exponential property we get : 
What is Exponential Property?
- Properties of Exponents : It is also called power or degree.
- It tells us how many times the base will be multiplied by itself.
- The properties of exponents or laws of exponents are wont to solve problems involving exponents.
- These properties also are considered as major exponents rules to be followed while solving exponents.
Using exponential property on given values we get,
Complete series using exponent property is:
Learn more about exponential property here:
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