A.25
Work:
-5x-5=25
Hope his helps.
Answer:
At least 202.44 mm in the top 15%.
Step-by-step explanation:
When the distribution is normal, we use 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 question, we have that:

How many yearly mm of rainfall would there be in the top 15%?
At least X mm.
X is the 100-15 = 85th percentile, which is X when Z has a pvalue of 0.85. So X when Z = 1.037.




At least 202.44 mm in the top 15%.
You use (y2-y1)/(x2-x1) so if you have two points (ex: (1,2) and (2,4)), plug in those number into the formula
(4-2)/(2-1) = 2/1 = 2 so the slope (or instantaneous rate of change) is 2 for those two points<span />
Answer:

Step-by-step explanation:
Given data
Number of balls= 480
we are told that 50%(half) of the balls are put back every 1
let the number of hours be x
and let the remaining ball be y after x hours
Hence the expression is given as

Answer:
Step-by-step explanation:
<u>When the line is given in standard form:</u>
- ax + by = c, it has slope of -a/b
<u>Given line:</u>
<u>It has a slope:</u>
A line perpendicular to the given should have a slope m = 1 as negative reciprocal to the given
<u>Let's see which line has the slope of 1:</u>
- 1. m = -(-1)/6 = 1/6 - NO
- 2. m = -4/4 = -1 - NO
- 3. m = -2/4 = -1/2 - NO
- 4. m = -(-2)/2 = 1 - YES
Correct option is D