Ch 7 - Expressions
Ch 8 Equations
Ch 9 Linear Functions
Ch 10 Congruence...
Ch 12 Probability and Statistics
100

Simplify this expression:

a +6(a+3)

7a + 18

100

Solve.   (1/3)a = 21

63

100

Is the following relation a function?

{(1, 3), (4, 9), (5, 3), (8, 9)}

Yes.

100

Classify this triangle.

A triangle has angle measures of 63, 63 and x.

(Acute) isosceles triangles
100
Find the mean, median and mode of this set of data (the number of trees at a student's house)

 0, 10, 1, 6, 2, 1, 3, 2, 2, 7

mean:  3.4 trees; median: 2 trees;  mode: 2 trees

200

Factor this expression:

14x-21

7(2x-3)

200

Solve: (1/5)n - 3 = 7

 n = 50

200

Find the rate of change between the quantities below.

{(0, 0), (4, 31), (8, 62)}

31/4

200

What three types of transformations keep congruence between the shapes?

translations, reflection and rotation

200

Is there an outlier in this set of data?  If so, what is it?   (the number of trees at a student's house)

 0, 10, 1, 6, 2, 1, 3, 2, 2, 7

No, there is not.

300

The angles measures of a triangle are (x-9) degrees, x degrees, and (2x-3) degrees.  Find the measures of the angles.

48, 93 and 96 degrees

300

Solve for c.  5c - 2 = c + 22

c=6

300

Which of these equations represents a direct variation?  List all that are correct.

y= 3x +5                       y = -3x

y = (1/2)x                     y = -(1/4)x -2

y = (1/2)x

y = -3x

300

What are the coordinates for the triangle ABC if the triangle is translated 2 units right and 5 units down?A (0, 1)   B (2, 5)   C (4, -1)

A (2, -4)   B (4, 0)  C (6, -6)

300

Find the mean absolute deviation for this data set.

35, 50, 40, 55, 45

mean absolute deviation:  6

400

Subtract (-3x+4) - (-7x-6)

4x+10

400

Solve this inequality.

24-3b < -15

b>13 

400

A balloon is rising above the ground.  The height in feet (y) of the balloon can be given by y = 7+2x, where x represents the time in seconds.  State the slope and the y-intercept of the graph of the equation.  Describe what the represent.

slope:  2 - the balloon rises 2 feet every second

y-intercept: 7 - the balloon starts 7 feet above the group

400

Find the vertex of this quadrilateral after a dilation with the scale factor k= 2/3

W (-3, 0), X (2, 6) Y (6, 2)   Z (9, -3)

W (-2, 0)  X (4/3, 4)  Y (4, 4/3)   Z (6, -2)

400

A coin is tossed and a number cube is rolled.  What is the probability of throwing a head and a number greater than 2)

P(heads and a number greater than 2)

1/3

500
Bilal bought x tickets to attend a football game and the cinema.  The expression 8x+62 AED represents the total cost of the football game, and 9x+34 AED represents the total cost of going to the cinema.  How much more did the football match cost if Bilal bought 7 tickets for each?

21 AED

500

Amnah buys five shirts on sale for AED 40 off the regular price.  Her total cost is 550 AED before tax.  Write an solve an equation to find the regular price of each  shirt.

The regular price of a shirt is:   150 AED

500

Tickets to a museum cost AED 30 for children and AED 80 for adults.  A group of four visitors to the museum spent a total of AED 220 on tickets.  Write and solve a system of equations to represent this situation.  Then interpret the solution.

2 children and 2 adults went to the museum.

500

Ms. Angie is using a photocopier to enlarge a worksheet of 12.5 cm by 17.5 cm.  What is the scale factor if he enlarges the photograph to 25 cm by 35 cm?

Scale factor   k=2

500

Forty-five people out of 60 people at City Center Mall said that they like Chili's.  Is this sample representative of Fujairah?  If so, how many people out of 800,000 can we expect to like Chili's.

Not representative.  (Convenience sample--also those at City Center might be there because that is where Chili's is)

If it were - we would expect 600,000 people to like Chili's