If $120.99 is charged for 654 units of electricity
1 answer:
Answer:
The cost of one unit of electricity is $0.185
Step-by-step explanation:
Amount charged = $120.99
Units of electricity used = 654
The cost of a unit of electricity can be determined by dividing the amount charged by the number of units used.
So that,
cost of one unit of electricity =
= 0.185
cost of one unit of electricity = $0.185
This implies that the cost of electricity used is charged at $0.185 per unit.
Thus for 654 units of electricity used, the cost would be;
654 x $0.185 = $120.99
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Answer:
Step-by-step explanation:
The projection of a vector onto a vector
is defined as the projection of the vector
on the line that contains the vector
. It can be calculated using the following formula:
Where:
Is the dot product between and
which is given by:
and:
Is the magnitude of vector which can be calculated as follows:
In this sense, the projection of vector w onto vector u is:
Where the dot product between and
is:
And the magnitude of is:
Thus:
As image shows. imagine unit circle
