Answer:
x= -10
Step-by-step explanation:
PEMDAS
First you multiply- -2x?
You don't know what x is so you subtract 4 for 16
16-4=12
2-12= -10
Answer:
1 and 2 is and 3 is not
Step-by-step explanation:
Answer: 1068
Step-by-step explanation:
Formula of sample size :
, where p = prior population proportion , E = margin of error , = Critical z- value.
Let p = proportion of visitors who are repeat visitors.
Given : p=0.5
E= 3%= 0.03
critical z-value for 95% confidence = 1.96
Now,
[round to the next integer]
Hence, the required sample size = 1068
Answer:
y^6
Step-by-step explanation:
Step-by-step explanation:
Multiply Equation no (1) with 2 and Equation no (2) with 7.
Substitute the value of "y" in Equation no (1)