Answer:
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Step-by-step explanation:
1st one is B: What is the total number of attendees at a movie?
Since all the other answer have a definite answer.
2nd one is A: How many cavities have you had in the last 5 years?
That answer shows you how well your dentist is as well as your hygiene.
3rd one is D: What age are the children who attend Boys and Girls Club programs in your town?
They would have a variety of ages to take data on,
4th one is C: e=7h
What amount she earns divided by 7 will be the hours she works. She makes $7 and hour.
If A and B are equal:
Matrix A must be a diagonal matrix: FALSE.
We only know that A and B are equal, so they can both be non-diagonal matrices. Here's a counterexample:
![A=B=\left[\begin{array}{cc}1&2\\4&5\\7&8\end{array}\right]](https://tex.z-dn.net/?f=A%3DB%3D%5Cleft%5B%5Cbegin%7Barray%7D%7Bcc%7D1%262%5C%5C4%265%5C%5C7%268%5Cend%7Barray%7D%5Cright%5D)
Both matrices must be square: FALSE.
We only know that A and B are equal, so they can both be non-square matrices. The previous counterexample still works
Both matrices must be the same size: TRUE
If A and B are equal, they are literally the same matrix. So, in particular, they also share the size.
For any value of i, j; aij = bij: TRUE
Assuming that there was a small typo in the question, this is also true: two matrices are equal if the correspondent entries are the same.
The answer would be 1/4 pounds((One and one quarter pounds)) I hope this helps :3
Answer:
hello i dont know
Step-by-step explanation:
The answer should be 2x-5