Find the inverse of the following matrices by writing them in the form I - D and using the sum-of-powers method on D. Check the accuracy of your answer by using the determinant-based formula for the inverse of ~ 2-b)1-2 matrix (see Section 3 .3) . (a) .7 - .2 - .4 .8 (b) . 6 .3 .2 .5 (c) .6 0 0 .5

42.4

step-by-step explanation:

convert to decimal

the answer is:

the correct option:

b.

to solve the problem, we need to remember how to operate to simplify exponential expressions using the logarithms.

we are given the equation:

then, using placing logarith with base 7 on both sides of the equation, we have:

so, rounding the obtained result to two decimal places (nearest hundreth), we have:

hence, we have that the correct option:

b.

have a nice day!