Answer:
A = 
Step-by-step explanation:
given,
Matrix =
A = 
determinant of matrix
|A| = a×a - (a-4)(a+4)
|A| = a² - a² +16
|A| = 16
inverse of the matrix
to calculate inverse of two matrix interchange the term a₁₁ with a₂₂ and multiply the -ve with a₁₂ and a₂₁
the inverse is
A = 
B is false. We know it can't be D, because that is a true statement. C is also true. Leaves A or B.
Answer:
1. Quadrant 2
2. Quadrant 3
Step-by-step explanation:
The quadrants are ordered in a 'c' pattern. The first quadrant has coordinates (x,y). The second quadrant has coordinates (-x,y). The third quadrant has coordinates (-x,-y). The fourth quadrant has coordinates (x,-y).
Answer:
b) 4 3/8
Step-by-step explanation:
we know that
12 muffins calls for 1 3/4 cups of flour
using proportion
Find out how much flour will be needed in the mix for a bath of 30 muffins

Convert mixed number to an improper fraction

substitute

convert to mixed number

Your answers are correct. Q3 Is > and Q4 is <