Sin²β +cos²β=1
cos²β=1-sin²β
cos²β=1-(4/7)²
cos²β=1-16/49=49/49-16/49=33/49
cosβ=√33/√49=√33/7
Answer:
slope is (1,1) (0,3) just count number of squares, if there was an equation involved use y=mx+b
Step-by-step explanation:
Explanation:If the bank has only quarters and dimes, and its total amount of coins is 250, then be x the amount of quarters it has, it will have 250−x dimes.
A quarter is worth 0.25$, a dime is worth 0.10$ and the 250 coins together are worth 39.25$.
The biggest one is 999.
If you started counting from 1 to 999, you would count to 99
before you get to the first 3-digit number.
So there are (999 - 99) = 900 of them.
Answer:
Because there are many different answers depending on how you answer.
well, only two for this question: 27 (for following pemdas) and 72 for following it in order