ME warm up 2/24

What type of correlation does this graph have?

• positive
• negative
• none
• all of the above

Tags

CCSS.HSF-LE.A.1B

The scatterplot shows the number of people in different households and the average amount of money each household spent on groceries.  Based on the scatterplot, how many people would you expect to feed if you spend $160 on groceries?

• 11
• 8
• 15
• 7

Two eighth-grade classes are selling raffle tickets to raise money.

*One class is selling tickets for $2.50 each and already raised $350.

*The other class is selling tickets for $3.00 each and has already raised $225.

Which equation can be used to find t, the number of tickets each class needs to sell so that the total amount raised is the same for both classes?

• 3t + 350 = 2.50t + 225

• 350t + 2.50 = 225t + 3

• 2.50t + 350 = 3t + 225

• Not here

Veronica is ordering trophies for her school. Company P charges $3.50 for each trophy and a one-time engraving fee of $25. Company R charges $7.50 for each trophy and a one-time engraving fee of $17. Which inequality can be used to find x, the minimum number of trophies that can be ordered so that the total charge at Company P is less than the total charge at Company R?

• 3.5 + 25x < 7.5 + 17x

• 3.5 + 25x > 7.5 + 17x

• 3.5x + 25 < 7.5x + 17

• 3.5x + 25 > 7.5x + 17

Tags

CCSS.7.EE.B.4B

In a museum there is a sculpture in the shape of a cylinder. The cylinder has a diameter of 12 feet and a height of h feet. Which equation can be used to find V, the volume of the cylinder in cubic feet?

• V = π(6)²h

• V = π(6h)²

• V = π(12)²h

• V = π(6h)²

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

A ball shaped like a sphere has a radius of 2.7 centimeters. Which measurement is closest to the volume of the ball in cubic centimeters?

• 46.38 cm³

• 33.93 cm³

• 122.15 cm³

• 82.45 cm³

Tags

CCSS.8.G.C.9

CCSS.HSG.GMD.A.3

• 450

• 410

• 360

• 600

Tags

CCSS.7.G.B.6

• 2π(3)² (9)

• 9π(3) (2)

• 2π(3) (9)

• π(3) (9)

Which statement describes the mapping?

• The mapping represents y as a function of x, because each y-value corresponds to exactly one x-value.

• The mapping does not represent y as a function of x, because two of the x-values correspond to the same y-value.

• The mapping represents y as a function of x, because each x-value corresponds to exactly one y-value.

• The mapping does not represent y as a function of x, because there are more x-values than different y-values.

Tags

CCSS.8.F.A.1

Which graph shows a proportional relationship between x and y?

• 
• 
• 
• 

Tags

CCSS.7.RP.A.2D