Answer: $ 48
Explanation:
1) kw-h is a measure electric energy consumption.
2) The cost of electric energy is considered proportional to the number of kw-h (kilo watts - hour) consumed. Thi is:
cost------- = constant = unit cost = 0.40 $/kw-h
kw-h
3) Then, the total cost is the total number of kw-h times the unit cost. This is:
8 h × 15,000 watts × 1 kw / 1,000 watts × 0.40 $ / kw-h = $48.
That is the cost to charge the robot each night
Answer:
The radius of the volleyball is 8.3 inches
Step-by-step explanation:
Given
Required
Determine the value of r
To do this, we simply substitute 288 for v and 3.14 for π in the given equation.
This gives
(Approximated)
Hence;
<em>The radius of the volleyball is 8.3 inches</em>
Answer:
22.5 cm
Step-by-step explanation:
We know, that the formula for the circumference of a circle is d*pi or 2 * r * pi
So we know 45 = diameter. Meaning r = 22.5
Answer:
1900 190×10 =1900 (half of 20 because every 2 hours) rate per hour is 95 half of 190.
