Answer:
d=2
Step-by-step explanation:
3d + 6 = 12
first subtract 6 from both sides
3d=6
divide by 3 on both sides
d=2
Answer:
So, I'm not a genius lol, but I learned this earlier this year. Here's a hint. You need to do ___ = __5%__
34.02
I hope this is helpful. Good luck!
Step-by-step explanation:
The answer is: " 1 " .
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Explanation:
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7⁶ * 7⁻⁶ = 7⁽⁶⁺⁽⁻⁶⁾⁾ = 7⁽⁶⁻⁶⁾ = 7⁰ = 1 . The answer is: "1" .
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Note the following properties of exponents:
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1) xᵃ * xᵇ = x⁽ᵃ⁺ᵇ⁾ ;
2) x⁰ = 1 ; (x ≠ 0) ;
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The mean ( average ) is given as 1200 hours.
The standard deviation is 200, sample size is 100.
Find the standard error:
√(200^2 / 100) = 20
Now calculate the confidence interval. For 95% the Z number is 1.96
Multiply Z by the standard error:
1.96 x 20 =39.2
Now find the range that the mean should be within:
1200 - 39.2 = 1160.8
1200 + 39.2 = 1239.2
The samples should be between 1160.8 and 1239.2 for a 95% confidence interval.
Since the average was 1050, which is below 1160.8 the bulbs are not in compliance.
