Cot(-x) = 1 / tan(-x)
Tan(-x) * 1 / tan(-x) = 1
Answer:
Step-by-step explanation:
<u>Substitute the values and solve for x:</u>
- 23 = 9 + 2x - 18 + x - 1
- 23 = 3x - 10
- 3x = 23 + 10
- 3x = 33
- x = 33/3
- x = 11
-4/5 is correct, since (-4/5)³ = -4*-4*-4/(5*5*5) = -64/125
Answer: 3
Explanation:
27 = 3^3
42 = 2 x 3 x 7
So the HCF of (27,42) = 3
24 +24 = 48
11 + 11 = 22
48 +22 = 70
the perimeter cannot be 60 with dimensions of 24 & 11
