X= 270
simplify the equation using cross multiplication
Answer: x=2/3
Step-by-step explanation:
First, we take the 3/4 and multiply 72 by it's reciprocal, 4/3. Your answer would come to c= 96.
Hope this helped :)
The teachings of buddha is the answer :-)
Answer:
[22.57 ± 2.776]
Step-by-step explanation:
Hello!
You have the 95% Confidence Z-interval (21.182;23.958), the mean X[bar]= 22.57 and the sample size n=25.
The formula for the Z interval is
[X[bar] ±
]
The value of Z comes from tha standard normal table:

The semiamplitude (d) or margin of error (E) of the interval is:
E or d= (Upperbond- Lowerbond)/2 = (23.958-21.182)/2 = 2.776
[X[bar] ± E]
[22.57 ± 2.776]
I hope it helps!