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Unit 5 Review

Last updated over 2 years ago
17 questions
1

Simplify. (No fractions in this answer)


1

Simplify.

1

Simplify.

1

Simplify.

1

Find the exact value


y=

1

Find the exact value


y=

1

Find the exact value


y=

1

Evaluate the expression. Give exact answers.

1

Evaluate the expression. Give exact answers.

1

Solve over the interval [0,2π]. Give exact answers when possible. Put a comma between your answers if applicable.

x= put a comma space if more than one answer

1

Solve over the interval [0,2π]. Give exact answers when possible. Put a comma between your answers if applicable.

Hint: you have to know an identity from last unit for this! THIS IS A CHALLENGE PROBLEM

x= put a comma space if more than one answer

1

Solve over the interval [0,2π]. Give exact answers when possible. Put a comma between your answers if applicable.

x= put a comma space if more than one answer

An electronic thermostat controls the temperatuce in an office. The temperatures vary according to the sinusoidal function
where y is the temperature (°C) and x is the time in hours past midnight.

Use this information for 23-25
1

What is the temperature in the office at 9 A.M. when employees come back to work?

Make sure °C is in your answer

1

What is the maximum temperature in the office?

Graph and analyze for maximum. Make sure you are in the correct mode.

Make sure °C is in your answer

1

What is the minimum temperature in the office?
Graph and analyze for minimum. Make sure you are in the correct mode.

Make sure °C is in your answer

1

Find an equation for the following: A mass on the end of a spring is at rest 120 cm above the ground. It is pulled down 50 cm and released at t=0.

Given: the period=π/5

Hint: which trig function does NOT star at the origin?

y=

1

Use the equation from #26 to find the height of the mass after 4 seconds. Round to the nearest tenth.