H(x)=-5x^2+10x+15h(x)=−5x 2 +10x+15h, left parenthesis, x, right parenthesis, equals, minus, 5, x, squared, plus, 10, x, plus, 1
kkurt [141]
Answer:
15 units
Step-by-step explanation:
Given the equation which models the path of a stone as:

At the time when the stone was thrown
x=0
Therefore:

The height of the stone at the time it is thrown is 15 units.
Should have ate zero if I’m not wrong
Answer:

Step-by-step explanation:
The dimensions must be the same
10 yards = 10 × 3 feet = 30 feet
ratio =
= 
We must take into account the following change of units:

Applying the change of units we have that the electric consumption for 1 year is given by:

Then, the total cost is given by:
Answer:
the cost of operating a 3.00-w electric clock for a year is:
$ 2.3652