5 hundreds is 500. So 500x10= 5000.
Answer:5000
A) The empirical rule tells you the probability of being within 1 standard deviation of the mean is 68%.
b) The probability that the sample mean falls within 3 standard deviations* of the mean is 99.7%.
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* The standard deviation of the sample mean is 1/√9 = 1/3 of the standard deviation of an individual sample. Hence the same limits (90-110) now cover 3 standard deviations of the sample mean.
<u>Answer:</u>
The expression 
<u>Solution:</u>
From question, given that 
By using the trigonometric identity 
the above equation becomes,
We know that 
On simplication we get
By using the trigonometric identity 
,the above equation becomes
By using the trigonometric identity 
we get 
By using the trigonometric identity 
we get 
Hence the expression
Answer:
The slope of line h is -9/7
Step-by-step explanation:
mathematically, for two lines that are perpendicular to each other, the product of their slopes is equal to -1
say we have two lines l1 and l2, the product of their slopes m1 and m2 is -1
Mathematically;
m1 * m2 = -1
now, m1 here is 7/9 , we now proceed to calculate m2
7/9 * m2 = -1
7m2/9 = -1
7m2 = -9
m2 = -9/7
A triangle equals 180 degrees
