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Salsk061 [2.6K]
3 years ago
8

I need help on question 8.

Mathematics
1 answer:
melomori [17]3 years ago
3 0

Answer:

  50.18°

Step-by-step explanation:

  ∠BAD = ∠BAC +∠CAD

  102° = (8x+17)° +(9x+11)° . . . . . substitute given values

  102 = 17x +28 . . . . . . . . . . simplify, divide by degrees

  x = (102 -28)/17 = 74/17 . . . . . solve for x

Then the angle of interest is ...

  ∠CAD = (9x +11)° = (9(74/17) +11)° = 50 3/17°

  ∠CAD ≈ 50.18°

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julia-pushkina [17]

Answer:

711.11

Step-by-step explanation:

<h3>Method 1 </h3>

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683.76 is increased by 4%.  683.76 would now be (100 + 4%) 104% of what it originally was

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<h3>Method 2 </h3>

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The fastest time is the smallest time since they ran the same distance

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