Answer:
Mean, m = 72
Step-by-step explanation:
It is given that, Carl earned grades of 62, 78, 59, and 89 on four math tests.
It is required to find the mean of his grades.
Mean of a data is given by :

Sum of observations is 62 + 78 + 59 + 89 = 288
Total no of observations are 4
So, mean of his grades is :

So, the mean of his grades is 72.
Answer: When a system of two linear equations gives an answer of
, there are infinitely many solutions. It also means that the graph represents parallel lines, so the answer is the third choice.
Step-by-step explanation: When it comes to systems of equations in algebra, you will see three types of solutions:
1. When you get an exact value & number for x and y, the system has <u>one solution</u> and is consistent/independent.
2. When you get
like in this case, the system has <u>infinitely many solutions</u> and is consistent/dependent.
3. When you get numbers that are not equal, for example,
, you have <u>many solutions</u> and the system is inconsistent/independent.
Answer:
(x+4)( 8x^{2}+1)
Step-by-step explanation:
:)
<span> vwx + wxy - xyz
=</span> x(vw + wy - yz)
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Answer:
24
Step-by-step explanation: