Sin of K is opp/hyp so the answe is a.12/13
Answer:
The minimum is -5
The range is 
f(14) = 2739
Step-by-step explanation:
Given
Solving (a): The minimum
A quadratic function is represented as:
If a > 0, then the function has a minimum
By comparison
--- the function has a minimum
To calculate the minimum, we first calculate the following is calculated as:
So, we have:
So, the minimum is at f(m)
We have:
Solving (b): The range
In (a), we have:
--- the minimum
This implies that the smallest value of y on the graph is -5.
So, the range is:
Solving (c): f(14)
We have:
So:
Answer:
Usual, because the result is within the range of the minimum and maximum usual values.
Step-by-step explanation:
When the z-scores is lower than -1.96 or higher than 1.96, they are considered as unusual and interesting and they are statistically significant outliers.
The Z score can be calculated by,
where,
X = raw score = 622.3
μ = mean = 674
σ = standard deviation = 26.6
Putting tall the values,
As , so the result is usual, because it lies within the range of the minimum and maximum usual values.
Read more on Brainly.com - brainly.com/question/3087033#readmore
<span>In
the fairest school 20% are below 16 years old
1/3 are teachers which is equals to = 21
Let’s start solving:
=> 1/3 of 100% = ( 100 / 3 = 33.33% )
thus 33.33% = 21
=> 21 x 3 = 63, is the total number of people in the school.
Let’s try solving the number of people below 16 years old
Then there are 20% of it:
=> 63 * .20 = 12.6
Thus, there are around 13 people who are 16 years old younger.</span>
Answer:
B
Step-by-step explanation:
