Here sin theta is positive and tan theta is negative , it means theta is in second quadrant where cos is negative too .

So the correct option is the third option .
Answer:
$210
Step-by-step explanation:
Say you were to write it as a function. F(x)=30<em>x</em>
all you have to do is fill in for <em>x</em>
30 times 7 = 210
Add he fractions first, 1/9 + 4/9 which is 5/9. Now add the whole numbers which are 2 and 7, and you get 9. Your fraction will be 9 5/9 and this number cannot be simplified anymore.
3ˣ (x² - 3)
Basically, just multiply everything together.
Step 1 : 3x × x² = 3x³ because when multiplying exponents, all you're really doing is adding them on top. So, x + 2x = 3x! But, they are exponents, so you get 3x³.
Step 2 : 3x ˣ × (-3) = -9ˣ
Now, our new question is : 3x³ - 9x
You wouldn't simplify this because x³ is NOT the same as x.
~Hope I helped!~