Let z = sin(x).
.. z^2 -2z = 2
.. z^2 -2z +1 = 3
.. (z -1)² = 3
.. z -1 = ±√3
.. z = 1 -√3 . . . . . the positive solution is extraneous
sin(x) = 1 -√3
You are right about the domain.
Answer:
5.45%
Step-by-step explanation:
To find info of a 15 year old male, you look at the Age Group of 14 - 18, beside Male.
The RDA of Iron is given as 11 mg
From a 8 oz glass of grape juice, he gets 0.6 mg.
<em>What percent is 0.6 mg of total 11 mg??</em>
Divide 0.6 by 11 and then multiply by 100 to get the answer. So we have:

Thus, 5.45% of RDA of iron is provided by an 8 oz glass of grape juice.
Lets solve all of these:-
#1
√361 = 361 · 2
?
√361 = 361 · 2
√361 = 19
361 · 2 = 722
19 ≠ 722
So this equation is not true
#2:-
√361 = 19²
?
√361 = 19²
√361= 19
19² = 19 · 19 = 361
19 ≠ 361
So this equation is not true
√361 = 361 ÷ 2
?
√361 = 361 ÷ 2
√361 = 19
361 ÷ 2 = 180.5
√361 ≠ 361 ÷ 2
So this equation is not true
√361 = √19²
√361 = 19
√19² = 19
19 = 19
SO the last one is right. Hope I helped ya!! xD