13. if m_a = 42°, then m b = ? and mzc = ? .
14. if m_b = 78°, then m_a = ? and mc = ? .
15. if mza = 17°, then m b = ? and m c = ?
16. if m b = 45°, then mła = ? and mzc = ?

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

answer: -2+√x,-2-√x

i hope this , i don't know if you're looking for a pair or not.

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.

1/800 is the right answer