Answer:
- From <u>2,150 kilowatt hours</u> will qualify for the heavy user classification.
Explanation:
Since the monthly electric consumption for January follows a normal distribution, you must use a standard normal table (Z table), which provides the probabilities for the (normalized) Z-scores.
The top 6% of electric consumption, means that you must find the z-score for which the probablitiy is ≥ 0.06.
The corresponding z-score shown in the table is 1.555.
Now just use the equation:
Where:
- μ = mean = 1,650 kilowatt hours
- σ = standard deviation = 320 kilowatt hours
- x = the value of your variable, which you will determine
Substituting:
- 1.555 = (x - 1,650) / 320
- x = 320 × 1.555 + 1,650 = 2,148 ≈ 2,150
- x ≈ 2,150 kilowatt hours.
Answer:
D, I think.
Explanation:
I had a quiz in Plate Tectonics and there was 2 questions that are related to this, but not the exact question.
Which material rises from cracks in oceanic crust
-molten rock
Which is the first step in the seafloor spreading process?
-a crack forms in oceanic crust.
those are all right btw, so you can decide if the answer I told you is right or not.
Answer:
33°
Explanation:
We are given;
Speed at which both snowballs are thrown; v = 33.2 m/s
Angle at which snowballs are thrown with respect to the horizontal; θ = 57°
Now,we want to find out the angle at which the second snowball should be thrown in order to arrive at the same point as the first.
To calculate this angle, we will use complementary angle concept.
Now, because the target is in the same place, there will be two launch angles that will make the snow ball to be placed on the target.
The is calculated from;θ1 = 45° - (57° - 45°) = 33°
