Tan = sin/cos so the answer would be 5/12
Answer:
Step-by-step explanation:
You have to be very careful how you put that into your calculator. You need brackets.
2nd function
sin-1
(
3
y^x or x^y or ^
.5
down arrow (if needed)
divide
2
)
= You should get 60
Step-by-step explanation:
Simplifying
5x = 3x + 8
Reorder the terms:
5x = 8 + 3x
Solving
5x = 8 + 3x
Solving for variable 'x'.
Move all terms containing x to the left, all other terms to the right.
Add '-3x' to each side of the equation.
5x + -3x = 8 + 3x + -3x
Combine like terms: 5x + -3x = 2x
2x = 8 + 3x + -3x
Combine like terms: 3x + -3x = 0
2x = 8 + 0
2x = 8
Divide each side by '2'.
x = 4
Simplifying
x = 4
Answer:
1764 ways
Step-by-step explanation:
Number of ways of selecting 6 cows from 9 cows and 5 buffaloes from 7
Using the combination formula:
nCr = n! ÷ (n - r)! r!
Ciw selection:
9C6 = 9! ÷ (9-6)! 6!
9C6 = 84
Buffalo Selection:
7C5 = 7! ÷ (7-5)! 5!
7C5 = 21
9C6 * 7C5
84 * 21
= 1764 ways
it is the last one before the time