Answer:
Area: 260 squared feet
Volume: 1560 cubed feet
Step-by-step explanation:
because the floor is rectangular you multiply the 2 measurements of the floor and you can measure how high the ceiling is to get the volume by also multiplying that number to the area.
Answer:
4, 2, 1, 3
Step-by-step explanation:
2/3(x + 21 - 1) - 162
We used the formula for PEDMAS
Step 1
2/3(x + 20) - 162
Step 2
2/3(x + 20) = 162
Multiply both sides by 3/2
Step 3
3/2× 2/3(x + 20) = 162 × 3/2
x + 20 = 81 × 3
x + 20 = 243
Subtract 20 from both sides
x + 20 - 20 = 243 - 20
Step 4
x = 223
Therefore, according to the above calculation, the correct steps to solve this question is 4, 2, 1, 3
Answer:
A student must obtain a grade of at least 84.2 in order to get an A.
Step-by-step explanation:
Problems of normally distributed samples can be solved using the z-score formula.
In a set with mean and standard deviation , the zscore of a measure X is given by:
The Z-score measures how many standard deviations the measure is from the mean. After finding the Z-score, we look at the z-score table and find the p-value associated with this z-score. This p-value is the probability that the value of the measure is smaller than X, that is, the percentile of X. Subtracting 1 by the pvalue, we get the probability that the value of the measure is greater than X.
In this problem, we have that:
If only the best 14 % of the students in the class will receive an A, what grade must a student obtain in order to get an A?
This is the value of X when Z is in the (100-14) = 86th percentile.
So it is the value of X when , and higher values of X. So
A student must obtain a grade of at least 84.2 in order to get an A.
Per hour, he snores 3 times per hour since he snores once every 20 minutes. In 3 hours, there are 180 minutes, so 180/20 = 9. The dog snores 9 times in 3 hours.
Answer:
The answer is B, I hope it will be helpful