Answer:
Part A) Use the identity 
Part B) 
Step-by-step explanation:
we know that
----> by trigonometric identity
we have

substitute in the expression above

solve for tan(A)



square root both sides

Remember that Angle A terminates in quadrant IV
so
The value of tan(A) is negative

<em>Find the value of cot(A)</em>
we know that
----> is the reciprocal
therefore

simplify

Answer:
3.4 grams
Step-by-step explanation:
The water 20g has salt solution of 17%.
If you were to evaporate all the water.
17% × 20
0.17 × 20 = 3.4
You would get 3.4 grams of salt.
2 Pies. If she cuts the first pie for 5 people she only needs one more pie for the 6th person
Step-by-step explanation:
Since f(0) = f(5) = f(8) = 0, we have f(x) = Ax(x - 5)(x - 8), where A is a real constant.
We know that f(10) = 17.
=> A(10)(10 - 5)(10 - 8) = 17
=> A(10)(5)(2) = 17
=> 100A = 17, A = 0.17.
Hence the answer is f(x) = 0.17x(x - 5)(x - 8).