Answer:12
Step-by-step explanation:
15^2-9^2=12^2
225-81=144
The cos y = 0.3. The cosine of any angle is the same as the sin of the complement of the same angle.
Answer:
Is it 2160?
Step-by-step explanation:
This is permutation
Imagine □□□□□, each □ represents a digit
For the 1st □, there are 6 choices, since "0" cannot be the first digit, or else it is not a 5-digit number
For the 2nd □, there are 6 choices (1 out of the 7 number is already used)
For the 3rd □, there are 5 choices (2 out of 7 numbers are used)
And so on.....
Therefore,
6×6×5×4×3 = 2160
Hello,
y+1/2=3(x-2)
or y=3x-13/2
The coefficients are the numbers next to the variable.
11r :- The coefficient is 11
7s :- The coefficient is 7
