Answer:
look at the picture for the answer
-3(4x - 2) - 2x
-12x + 6 - 2x
-14x + 6
The correct answer is D. -14x + 6
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Convert hours to minutes
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1 hour 55 mins = 60 + 55 = 115 mins
1 hour 50 mins = 60 + 50 = 110 mins
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Speed = 36/h
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1 hour = 36 km
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Rewrite 1 hour as 60 mins
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60 mins = 36 km
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Find 1 min
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1 min = 36 ÷ 60
1 min = 0.6 km
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Find 115 mins
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1 min = 0.6 km
115 min = 0.6 x 115
115 min = 69km
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Speed = 72km/h
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1 hour = 72 km
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Write 1 hour as 60 mins
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60 mins = 72 km
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Find 1 min
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1 min = 72 ÷ 60
1 min = 1.2 km
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Find 110 min
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1 min = 1.2 km
110 min = 1.2 x 110
110 min = 132 km
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Total Distance traveled:
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69km + 132km = 201km
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Answer: 201 km
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1² + 3² + 4² + 4(n - 1)² = ¹/₃n(2n - 1)(2n + 1)
1² + 3² + 4² + (2n - 2)² = ¹/₃n(2n - 1)(2n + 1)
1 + 9 + 16 + (2n - 2)(2n - 2) = ¹/₃n(2n(2n + 1) - 1(2n + 1))
10 + 16 + (2n(2n - 2) - 2(2n - 2)) = ¹/₃n(2n(2n) + 2n(1) - 1(2n) - 1(1) 16 + (2n(2n) - 2n(2) - 2(2n) + 2(2)) = ¹/₃n(4n² + 2n - 2n - 1)
26 + (4n² - 4n - 4n + 4) = ¹/₃n(4n² - 1)
26 + (4n² - 8n + 4) = ¹/₃n(4n² - 1)
26 + 4n² - 8n + 4 = ¹/₃n(4n²) - ¹/₃n(1)
4n² - 8n + 4 + 26 = 1¹/₃n³ - ¹/₃n
4n² - 8n + 30 = 1¹/₃n³ - ¹/₃n
+ ¹/₃n + ¹/₃n
4n² - 7²/₃n + 30 = 1¹/₃n³
-1¹/₃n³ + 4n² - 7²/₃n + 30 = 0
-3(-1¹/₃n³ + 4n² - 7²/₃n + 30) = -3(0)
-3(-1¹/₃n³) - 3(4n²) - 3(-7²/₃n) - 3(30) = 0
4n³ - 12n² + 23n - 90 = 0
A. I’m so sorry I cant tell you how to do this part, get a formula chart from the Internet and just plug in the answers.
B. The slope of the ladder is also how it is slanted, if I’m reading it correctly, it’s there slanted part.
C. Much harder omgosh, imagine leaning a ladder up against a strait wall, and then pitting your weight I=on it backwards, here’s a hint you would fall flat on your back.
