Answer:
B. [0.802], [0.978]
Step-by-step explanation:
n=49
p=.89
confidence level of 95% has a z value of 1.960
z*= 1.960
z*=qnorm(1.95/2)
p+/-z* multiplied by sqrt[ P * ( 1 - P ) / n ]
p+/-z*times(√(p)(1-p)/n)
.89+/-1.960* (square root of (.89)(.11)/49))
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Answer:
3(7a+3)
Step-by-step explanation:
Take out 3 as a common factor.
Answer:
Its 8
Step-by-step explanation:
3x+10+2x=50
3x+2x=5x
5x+10=50
5x+10-10=50-10
5x=40
x=8
5x8=40
We have to find the exact value of
And it can also be written as
And
So we will get
Answer:
Both zero
Step-by-step explanation:
Adding both eqs
2x+6y-2x-5y=0+0
y=0
Putting in first equation
2x=0
x=0