Answer:
Mean = 0.4
Stand deviation = 0.08944
Step-by-step explanation:
1.
This question tells us that the mean of trapped moths is only 0.4
Therefore the mean = E(X) = 0.4
2.
The standard deviation of the sample mean is
= σ/√n
σ = 0.6
n = 45
When we put these values into the formula we will have:
0.6/√45
= 0.6/6.708
= 0.08944
So in conclusion, the mean is 0.4 and the standard deviation is 0.08944.
Thank you!
Answer:
i think it's 46 miles
Step-by-step explanation:
Sin θ =

If θ = 51° ; opp = QR ; hyp = 17 cm
Then sin 51° =

⇒ QR = (sin 51°) (17 cm)
= 13.21 cm
∴ the answer is OPTION C
8x + y = 12 (substitute 3 for y)
<span>8x + 3 = 12 </span>
<span>8x = 9 </span>
<span>x = 9/8 </span>
<span>If y = 3 and 8x + y = 12, then x = 9/8.
HOPE THIS HELPS!!</span>
-9(3z + 7)
distribute -9 to both 3z and 7
-27z - 63
-27z - 63 is your answer
hope this helps