Answer:
B and D
Step-by-step explanation:
Answer:
B.
Step-by-step explanation:
The given matrix is
The determinant of this matrix is
Since the determinant is not zero, it means the inverse exists.
The inverse is given by
The correct choice is B.
1 step: if you have to square some number, then you have to multiply this number by itself:
2 step: to find the cube of a number you should multiply this number two times by itself:
3 step: multiplying a by itself 5 times you get the 6th power of a:
Similar way to count is:
The formula for percentage error is:
Ross got the approximate area as 12, while the actual area was 11.8. So, let's plug it in to the formula.
Multiply 0.0169 by 100 to make it into a percent.
0.0169 * 100 =
1.69%Ross's percentage error is
1.69%.
11 - 19m = -16m -16 subtract 11 on both sides, and you get -19m = -16m -27. Then you add 16m to both sides, so its -3 = -27, and once you divide both sides by -3, it equals m = 9 :)