For this you simply plug in to substitute 3 wherever you see an x!
f(3) = 6(3)+7
f(3) = 18 + 7
f(3) = 25
1) 2x+14=x+18
2x=x+4
x=4
2) 9y-2=3y+10
9y=3y+12
6y=12
y=2
3) 2*(2[4]+14) + (9[2]-2)
4) 32/2=16
5) 11*2=22
I don't think that this is possible. The closest pair, -5 and 9, equal 4.
Answer:
2x+11
Explanation: it’s the answer:)
Answer:
The C.I. at 95% is 185±9.9583 or C.I.[175 to 195].
Step-by-step explanation:
Given:
Mean =185 mg
Standard deviation=17.6
Total number of samples=12
To Find:
95% of Confidence interval .
Solution:
We know that formula for C.I is given by ,
<em>C.I.=mean±Z[standard deviation/Sqrt(Total no of samples)]</em>
So using all above given values we get ,
Here Zscore at 95% is Z=1.96
So
C.I.=185±1.96[17.6/Sqrt(12)]
=185±1.96[17.6/3.464]
=185±1.965[5.0808]
=185±9.9583
In short C.I. is given as at 95% C.I.[175 to 195].