Geometry Mock Test 4R9

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Questions and Answers

What is the bearing of Checkpoint B from Checkpoint A?

N22°E

If a runner travels at 12.6 km/h between Checkpoint A and Checkpoint B, how long will it take to cover 42 kilometers?

3 hours and 20 minutes

How much does Provider A charge monthly for 500 kWh of electricity?

$40 + (500 * 0.25) = $165

If Provider B charges 35 cents per kWh, what would be the total charge for 800 kWh?

<p>$280</p> Signup and view all the answers

Which provider is cheaper for a customer using 800 kWh, and by how much?

<p>Provider A is cheaper by $115.</p> Signup and view all the answers

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Study Notes

Checkpoint Navigation Problem

  • Checkpoint C is located directly east of Checkpoint A.
  • The bearing from Checkpoint A to Checkpoint B is N22°E.
  • The bearing from Checkpoint B to Checkpoint C is S68°E.
  • Distance between Checkpoint A and Checkpoint B is 42 km.
  • Determine values of h and x to the nearest centimeter.

Runner's Travel Time

  • Runner's speed is 12.6 km/h.
  • Calculate travel time between Checkpoint A and Checkpoint B in hours and minutes.

Electricity Providers Comparison

  • Provider A charges 25 cents per kilowatt hour (kWh) plus a $40 fixed monthly fee.
  • Provider B charges 35 cents per kWh with no fixed monthly fee.
  • A table is needed to calculate monthly charges for Provider A at different levels of usage.
  • A graph should be created to depict charges from Provider B based on usage.
  • Compare the two graphs to identify the point where both providers charge the same amount for kWh usage.
  • For a usage of 800 kWh per month, analyze which provider offers a more economical option and calculate the cost difference.

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