Answer:
70° is your measurement for ∠t.
Step-by-step explanation:
Note that a straight line has an angle of 180°
It is given to us that ∠r and ∠t = 180°, and that m∠r = 110°
Plug in 110 for ∠r
110 + ∠t = 180
Isolate ∠t. Note the equal sign, what you do to one side, you do to the other. Subtract 110 from both sides
110 (-110) + ∠t = 180 (-110)
∠t = 180 - 110
∠t = 70
70° is your measurement for ∠t.
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Answer:
5^6
Step-by-step explanation:
5^5×5 = 5^5×5^1 = 5^(5+1) = 5^6
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This may become more obvious if you remember that an exponent signifies repeated multiplication:
(5^5)·(5) = (5·5·5·5·5)·(5) = 5·5·5·5·5·5 = 5^6
a² - b² = (a - b)(a + b)
49x² - 9 = (7x)² - 3² = (7x - 3)(7x + 3)
