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12.1.1 Review & Preview

Last updated 22 days ago

12 questions

Examine the graph of the circle at right. 12-6 HW eTool (Desmos)  Homework Help ✎

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Question 1

1.

Find the equation of the circle.

Question 2

2.

On graph paper, sketch the graph of the equation x^2+y^2=49. What is the radius?

A credit union offers a long-term account that pays 6% interest compounded monthly and your college fund currently contains $8500.  Homework Help ✎

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Question 3

3.

What is the monthly multiplier?

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Question 4

4.

Write a function of the form f(t)=ab^t that represents the monthly situation.

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Question 5

5.

At the current rate, what will be the value of the account in 5 years? Round to the nearest dollar.

Examine the diagram below.  Homework Help ✎

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Question 6

6.

Write an equation using the geometric relationships in the diagram.

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Question 7

7.

Solve your equation for x.

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Use the diagram of ⊙C at right to answer the questions below.  Homework Help ✎

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Question 9

9.

If m\angle x=28^\circ, what is \overset\frown{ A D }?

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Question 10

10.

If AD=5 and BD=5\sqrt{3}, what is the area of ⊙C?

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Question 11

11.

If the radius of ⊙C is 8 and if m\overset\frown{BD}=100^\circ, what is BD? Round to the nearest tenth.

Question 12

12.

Multiple Choice: Based on the markings in the diagrams at right, which statement is true? Homework Help ✎

\Delta ABC \cong \Delta XYZ

None of these

Question 8

8.

Find the measures of the acute angles of the triangle. Round each angle to the tenth of the degree.

\Delta ABC \cong \Delta YXZ

\Delta ABC \cong \Delta ZXY

\Delta ABC \cong  \Delta ZYX