Rewrite the system of equations in matrix form.
This system has a unique solution 
so long as the inverse of the coefficient matrix 
exists. This is the case if the determinant is not zero.
We have
so the inverse, and hence a unique solution to the system of equations, exists as long as m ≠ -4.
Answer:
Acute
Step-by-step explanation:
This should be an acute triangle because if this was a right angle, then the three sides should be figured out by the Pythagorean Theorem.
An obtuse angle wouldn't be right either, you need an angle to be over 90.
Answer:
what grade level
Step-by-step explanation:
You need to subtract:
52,000,000
- 31
---------------------------
51999969
Answer:
first order the data from least to greatest. Then subtract the smallest value from the largest value in the set
Step-by-step explanation:
