Matrices+determinants: how do i do this? the hint says there’s a way i can simplify it to make it much easier to do. is it the repeating pattern so i can isolate just a few into a smaller determinant instead of this huge one? ? i’m stuck. ? show work, too!

answer: hey there,

the answer you are looking for is a..

hope this you!

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet

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