Remove the parentheses and combine the like terms:
7 - -9 = 7+ 9 = 16
6i - -8i = 6i +8i = 14i
The answer is 16 + 14i
Answer:

Step-by-step explanation:
Given

Required
Find f(x - 4)
Substitute x - 4 for x

Expand

Collect like terms


Answer:
The power of horse is: P = 72000 W
Step-by-step explanation:
Given
To determine
P = ?
Using the formula

The ⋅ in the formula represents a scalar product, defined by:

The angle Ф is zero because F and v are are parallel.
Thus the cosine is 1.
Therefore,
P = (1800) (40.0)
P = 72000 W
Hence, the power of horse is: P = 72000 W
Answer:
<u><em>Good luck!
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