Question

If 1/4cotx - 11 = -9, then cotx = _____.

1/2
5
8
80

Answer 1

Answer:
8

Explanation:

`(1)/(4)`cotx – 11 = -9
To solve algebraically, try to get cotx alone.
First, add 11 to both sides:

`(1)/(4)`cotx – 11 + 11 = -9 + 11

`(1)/(4)`cotx = 2
Now divide by
`(1)/(4)` on both sides, which is the same as multiplying the other side by 4:

`(1)/(4)`cotx ÷
`(1)/(4)` = 2 ÷
`(1)/(4)`
cotx = 8