If sin θ=4/5 and 90°<θ<180°, what is cos θ?
1 answer:
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Given:
The equation is:
To find:
The solution for the given equation.
Solution:
We have,
It can be written as:
Taking square root on both sides, we get
[Radius cannot be negative]
Therefore, the value of r is about 6.36 cm.
Answer:
5 tulips.
Step-by-step explanation:
Given:
The expression for the cost of the tulips is
Where, is the number of tulips.
Now, Joanna has .
So, number of tulips that can be bought with the above amount can be obtained by substituting for cost. This gives,
.
As the number of tulips cannot be in decimals or fractions, so the maximum number of tulips that can be bought will be 5.