7.2.2 Review & Preview

Point M is the midpoint of AB and B is the midpoint of AC.  Homework Help

1

Find the value of x in the diagram above. Show all work.

1

FInd the value of y in the diagram above. Show all work.

Read the following Math Notes Box.  Homework Help

The cost of large flat-screen televisions is decreasing 20% per year.

1

What is the multiplier?

1

If a 50-inch flat-screen now costs $1200, what will it cost in three years?

1

At the same rate, what did it cost two years ago?

A light directed from point E is pointed at a hinged mirror with right angle as shown below.  Homework Help

If ∠x measures 36°, find the measures of the following angles....

1

∠a =? (Fill in the picture with the following angles to show your work.)

1

∠r =?

1

∠m =?

1

∠y =?

1

∠z =?

1

Why must the arrows at points A and E be parallel?

On graph paper, graph quadrilateral MNPQ if M(−3,6), N(2,8), P(1,5), and Q(−4,3).

1

What shape is MNPQ? Show how you know in the work section. Homework Help

1

Use the function x→x, y→−y to reflect MNPQ across the x-axis and create M′N′P′Q′. What are the coordinates of P′? (Can use the work space above if needed.)

1

Jester started to prove that the triangles at right are congruent. He was only told that point E is the midpoint of segments AC and BD. Homework Help

For a school fair, Donny is going to design a spinner with red, white, and blue regions. Since he has a certain proportion of three types of prizes, he wants the P(red)=40% and P(white)=10%.  Homework Help

1

If the spinner only has red, white, and blue regions, then what is P(blue)? Explain how you know in the work space.

1

Find the central angles of this spinner if it has only three sections. Then draw a sketch of the spinner. Be sure to label the regions accurately.

1

Is there a different spinner that has the same probabilities? If so, sketch another spinner that has the same probabilities. If not, explain why there is no other spinner with the same probabilities.

1

7.2.2 Review & Preview

Find the value of x in the diagram above. Show all work.

FInd the value of y in the diagram above. Show all work.

What is the multiplier?

If a 50-inch flat-screen now costs $1200, what will it cost in three years?

At the same rate, what did it cost two years ago?

∠a =? (Fill in the picture with the following angles to show your work.)

∠r =?

∠m =?

∠y =?

∠z =?

Why must the arrows at points A and E be parallel?

What shape is MNPQ? Show how you know in the work section. Homework Help

Use the function x→x, y→−y to reflect MNPQ across the x-axis and create M′N′P′Q′. What are the coordinates of P′? (Can use the work space above if needed.)

Jester started to prove that the triangles at right are congruent. He was only told that point E is the midpoint of segments AC and BD. Homework Help

If the spinner only has red, white, and blue regions, then what is P(blue)? Explain how you know in the work space.

Find the central angles of this spinner if it has only three sections. Then draw a sketch of the spinner. Be sure to label the regions accurately.

Is there a different spinner that has the same probabilities? If so, sketch another spinner that has the same probabilities. If not, explain why there is no other spinner with the same probabilities.

On the graph below, graph and shade the solutions for the inequality. Homework Help

Find the value of x in the diagram above. Show all work.

FInd the value of y in the diagram above. Show all work.

What is the multiplier?

If a 50-inch flat-screen now costs $1200, what will it cost in three years?

At the same rate, what did it cost two years ago?

∠a =? (Fill in the picture with the following angles to show your work.)

∠r =?

∠m =?

∠y =?

∠z =?

Why must the arrows at points A and E be parallel?

What shape is MNPQ? Show how you know in the work section. Homework Help

Use the function x→x, y→−y to reflect MNPQ across the x-axis and create M′N′P′Q′. What are the coordinates of P′? (Can use the work space above if needed.)

Jester started to prove that the triangles at right are congruent. He was only told that point E is the midpoint of segments AC and BD. Homework Help

If the spinner only has red, white, and blue regions, then what is P(blue)? Explain how you know in the work space.

Find the central angles of this spinner if it has only three sections. Then draw a sketch of the spinner. Be sure to label the regions accurately.

Is there a different spinner that has the same probabilities? If so, sketch another spinner that has the same probabilities. If not, explain why there is no other spinner with the same probabilities.

On the graph below, graph and shade the solutions for the inequality. Homework Help