Opposite side = sqrt (3^2 - 2^2 ) = sqrt5
sin theta = -sqrt 5 / 3 as the sine is negative in the 3rd quadrant
csc theta = - 3 / sqrt5
Answer:
3
Step-by-step explanation:
Answer:
Step-by-step explanation:
The last equation has 2 variables
If we double the first equation and subtract the second one from it, we get rid of y and then comparing the new equation with the last one we can easily solve it
<u>Step 1</u>
- 2(2x + y + 3z) = 2*20
- 4x + 2y + 6z = 40
<u>Step 2</u>
- 4x - x + 2y - 2y + 6z - (-z) = 40 - (-11)
- 3x + 7z = 51
<u>Step 3</u>
- 3x + 7z - (3x - 2z) = 51 - (-3)
- 7z + 2z = 54
- 9z = 54
- z = 6
<u>Then finding x</u>
- 3x - 2*6 = -3
- 3x = 12 - 3
- 3x = 9
- x = 3
<u>Then finding y using the first equation</u>
- 2*3 + y + 3*6 = 20
- y + 24 = 20
- y = -4
<u>The answer:</u>
The answer is D.5c cause you subtract 5c from the other side and your left with -4=-4
Answer: Total cost of an item is $12.96.
Step-by-step explanation:
Since we have given that
Selling price of an item = $12
Rate of sales tax in one town = 8%
Since the equation of total cost of an item is written as
So, we will put c = $12 to get the required answer:
Hence, Total cost of an item is $12.96.
