Answer:
2.30 is going to be your anwer
Step-by-step explanation:
The true statement about this information is that: A. It is both a relation and a function.
<h3>What is a function?</h3>
A function can be defined as a mathematical expression which can be used to define and represent the relationship that exist between two or more variables in a population.
In this context, we can infer and logically deduce that the true statement about this information collected by Jen is that it's both a relation and a function because it indicates a relationship between two variables.
Read more on function here: brainly.com/question/4246058
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Answer:
1.D
2.c
Step-by-step explanation:
f(m/4)=8(m²/16)-4(m/4)
=m²/2-m
f(-4)=-3(-4)²+5(-4)
=-3(16)-20
=-48-20
=-68
P80 = 36 * 0.80 = 28.8
The above equation shows that the 80th percentile will have 28.8 values below it. So obtaining the 29th value will be the 80th percentile.
Looking at the given values, P80 = 67.
Answer:
(x, y, z) = (6, 7, 6)
Step-by-step explanation:
Maybe your matrix is ...
![\left[\begin{array}{ccc|c}3& -1& 7& 53\\ 1& 7& 1& 61\\ 9& 1&1&67\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7Cc%7D3%26%20-1%26%207%26%2053%5C%5C%201%26%207%26%201%26%2061%5C%5C%209%26%201%261%2667%5Cend%7Barray%7D%5Cright%5D)
A calculator can tell you the solution is ...
(x, y, z) = (6, 7, 6)
_____
For systems of equations in more than 2 variables the third variable can be defined in terms of the other two (as for solution by substitution). This can be substituted into the remaining equations to obtain two equations in two unknowns. That solution can then be used to find the value of the third variable. The attachment shows application of this method.
We used the last equation to define z, then used that definition in the first two equations. The same approach can be used for an algebraic solution.
The solution is (x, y, z) = (6, 7, 6).
