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2 years ago

How many times does the graph of the function below intersect or touch the

Mathematics

1 answer:

Nitella [24]2 years ago

3 0

Answer:

The graph of the function only touches once, so it is B. 1

Step-by-step explanation:

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4.2 + 3.5 + 0.5 + 4.0

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2 years ago

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2 years ago

You spend $50 on a bracelet to sell at the football game. You want to sell each bracelet for $3. Let b be the number of bracelet

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How many bracelets did you buy just $50 dollars worth and how much did you buy one bracelet for <span />

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2 years ago

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A long distance runner does a first lap around a track in exactly 50 seconds.As she tires.Each subsequent lap takes 20% longer t

madreJ [45]

Answer:

182 seconds

Step-by-step explanation:

Given:

Time taken for first lap is 50 seconds and each subsequent lap takes 20% longer than previous

Solution:

Time taken for first lap = 50 sec

For second lap

Each subsequent lap takes 20% longer than previous

Previous lap time = 50 sec

second lap = 50 + 20% of 50

second lap $=50+(\frac{20}{100}\times 50)$

second lap $= 50 + 10$

second lap $= 60\ sec$

For third lap

Each subsequent lap takes 20% longer than previous

Previous lap time = 60 sec

Third lap = 60 + 20% of 60

$Third\ lap = 60 + (\frac{20}{100}\times 60)$

$Third\ lap = 60+2\times 6$

$Third\ lap = 60+12$

$Third\ lap = 72\ sec$

Time taken for 3 laps is equal to sum of all three laps time.

$Tiem\ taken\ for\ 3\ lap = 50+60+72$

$Tiem\ taken\ for\ 3\ lap = 182\ sec$

Therefore, it takes 182 seconds (3 min, 2 seconds) to run three laps

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3 years ago