Retrieval 2/21/23 8th grade

The sum of the measures of the angles in a triangle is _________ degrees?

Solve for x:

 $2\left(5x+3\right)-x+3=18$  

State the line of reflection.

• Reflection across y-axis
• Reflection across x-axis
• Reflection across x = 1
• Reflection across y = 1

Flipping a figure is a ...

• Rotation

• Reflection

• Dilation

• Translation

Is the number rational or irrational?

• Rational
• Irrational

What is the correlation between length of running start and distance of jump?

• positive:  the further you run the further you jump
• negative: the less you run the less distance of your jump
• positive: the further your running start the less your distance

Level 3

Find the length of the missing side.

• 25 cm

• 42 cm

• 52 cm

• 48 cm

Which statement best represents this relationship?

• There is no relationship between the number of miles driven and the amount of gas remaining in the tank
• As the number of miles driven increases, the amount of gas remaining in the tank increases.
• As the number of miles driven increases, the amount of gas remaining in the tank decreases.
• A relationship cannot be determined from this scatter plot

Find the mean age. You may want to write out the table with an extra column.

• 2.6

• 6.5

• 5.7

• 5.5