Y=ab^x
logab=x
log7(1/343)=-3
y=7(1/343)^-3
Answer:
B. 6 units
Step-by-step explanation:

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Answer:
∠ 5 = 40°
Step-by-step explanation:
∠ 1 and ∠ 2 are adjacent angles and supplementary, thus
∠ 2 = 180° - ∠ 1 = 180° - 140° = 40°
∠ 5 and ∠ 2 are alternate angles and congruent , thus
∠ 5 = 40°
The answer to that equation is X= -1