Answer:
A student can play the trumpet, but not be in the school band
Step-by-step explanation:
A counterexample would prove the conditional false. That will be the case when the condition is met, but the conclusion is wrong. Such a case is ...
A student can play the trumpet, but not be in the school band
Answer:
Bases change red litmus into blue and bases have a slippery and soapy texture. Therefore, we can conclude that out of the given options, one way to test whether an unknown solution is acidic or basic is to check whether the solution has a slippery feel
Step-by-step explanation:
Answer:
-18 - 24y.
Step-by-step explanation:
6(-3-4y)
We use the distributive law to give:
6 * -3 + 6* -4y
= -18 - 24y.
Answer:
(B) a square matrix
Step-by-step explanation:
The given Equations are:
,
and

Which can be written as:
![\left[\begin{array}{ccc}3&-2&2\\7&3&-26\\-1&-11&46\end{array}\right]](https://tex.z-dn.net/?f=%5Cleft%5B%5Cbegin%7Barray%7D%7Bccc%7D3%26-2%262%5C%5C7%263%26-26%5C%5C-1%26-11%2646%5Cend%7Barray%7D%5Cright%5D)
Thus, it is a matrix with 3 number of rows and 3 number of columns, therefore the matrix which has same number of rows and columns is a square matrix, thus, a square matrix can be form using the given system of linear equations.
Answer:
And if we solve for a we got
And for this case we can conclude that the time required needs to be 2.2552 minutes or less in order to be sponsored
Step-by-step explanation:
Let X the random variable that represent the time for goals in hockey games of a population, and for this case we know the distribution for X is given by:
Where
and
For this part we want to find a value a, such that we satisfy this condition:
(a)
(b)
As we can see on the figure attached the z value that satisfy the condition with 0.10 of the area on the left and 0.90 of the area on the right it's z=-1.28.
If we use condition (b) from previous we have this:
and we can do the following
And if we solve for a we got
And for this case we can conclude that the time required needs to be 2.2552 minutes or less in order to be sponsored