Nina's car exponentially depreciates at a rate of 7% per year. If Nina bought the car when it was six year old for $12,000 what
1 answer:
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First, you factor and simplify (respectively) the numerator and denominator. Your equation becomes:
Notice, there is a (x + 7) on both the top and the bottom. Because of this, they cancel each other out. What is left is your answer:
Notice, there is a (x + 7) on both the top and the bottom. Because of this, they cancel each other out. What is left is your answer:
Answer:
x = 4
Step-by-step explanation:
Using the sine ratio on right triangle KJL
and the exact value sin30° =
sin30° = =
=
=
( cross- multiply )
2JL = 8 ( divide both sides by 2 )
JL = 4
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Using the sine ratio in right triangle JLM
and the exact value sin45° =
sin45° = =
=
=
( cross- multiply )
x × = 4
( divide both sides by
x = 4
Answer:
(-10,-40)
Step-by-step explanation:
Here is a picture of the way I did it.
