To calculate P(at least one valve opens), we can find 1 - p(no valves open).
This is equal to 1 - (0.05)^5, or 0.9999996875.
P(at least one valve fails to open) is equal to 1 - p(all valves open and none fail). This is 1 - (0.95)^5, or 0.2262190625.
we can get z because every straight line is 180 degrees, and 180-122= 58 degrees for z
we can then get y with that same routine, 180-58= 122 degrees for y
lastly, using those steps again, we know x is 58 degrees
Answer:
A, the solutions are x=3,2
Step-by-step explanation:
(x-7)(x-5)=x-7
(x-7)(x-5)-(x-7)=0
(x-7)[(x-5)-1]=0
(x-7)(x-6)=0
x=7 or x=6
Hope this can help.
