I think u divide or multiply
Answer:
Height = 30 mi.
Base = 120 mi.
Area = 3,600 mi^2.
Step-by-step explanation:
Let the height be x then the base = 4x.
The perimeter = 2*base + 2*height
= 2*4x + 2x
= 10x.
10x = 300
x = 30.
So the height is 30 mi and the base = 4*30 = 120 mi.
The area = height * base
= 30 * 120
= 3600 mi^2.
Answer:
A value of 3.38 inches is two standard deviations above the mean
Step-by-step explanation:
Problems of normally distributed samples are 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:
What value is two standard deviations above the mean?
This is X when Z = 2. So
A value of 3.38 inches is two standard deviations above the mean
Answer:
-47
Step-by-step explanation:
To find the answer, you need to find the pattern.
Each term of the sequence is decreased by an odd number in a pattern of (-1, -3, -5, -7, -9, -11, -13...)
So:
2 - 1 = 1 (second term)
1 - 3 = -2 (third term)
-2 - 5 = -7 (fourth term)
-7 - 7 = -14 (fifth term)
-14 - 9 = -23 (sixth term)
-23 - 11 = -34 (seventh term)
-34 - 13 = -47 (eighth term)
Example: What is the area of this rectangle?The formula is:<span>Area = w × h
w = width
h = height</span><span>The width is 5, and the height is 3, so we know w = 5 and h = 3:</span><span>Area = 5 × 3 = 15</span>