Answer:
3x - 36
Step-by-step explanation:
-3 (-x+12)
simply the expression
Answer:
I think it is -5,-5
Step-by-step explanation:
because it started at negative 5 qurdent two and it ends at in qurdent four at -5
Simplies form of 3/8 is 1/4
Answer:

Step-by-step explanation:
The firm tests 75 parts, and finds that 0.25 of them are notusable
n = 75
x = 0.25 \times 75 = 18.75≈19



Confidence level = 95%
So, Z_\alpha at 95% = 1.96
Formula of confidence interval of one sample proportion:


Confidence interval 