a boy throws a ball straight up into the air it reaches of the highest point of its flight after 4 seconds how fast was the ball
1 answer:
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Answer:
is an extraneous solution: True
is the only solution: True
Step-by-step explanation:
The given logarithmic equation is:
Apply the property to the LHS to get:
We rewrite the corresponding indicial expression to get:
Simplify the RHS to get:
Take square root to get:
Since the domain of the logarithmic function is positive real numbers, the only solution is
We have been given diagram of a triangle. We are asked to write an expression that represents the distance between Seattle and San Francisco.
We will use law of cosines to solve our given problem.
, where a, b and c are sides corresponding to angle A, B and C.
Let the distance between Seattle and San Francisco be 'c' and .
Using law of sines, we can set an equation as:
Upon taking square root in both sides, we will get:
Therefore, we can use the expression can be used to find distance between Seattle, WA, and San Francisco, CA.