Sat practice

500 different light bulbs were tested in each trial. The bar graph above shows the number of defective light bulbs found in each trial. In Trial B, what percent of the light bulbs were defective?

• 0.70%

• 0.84%

• 1.40%

• 7.00%

Tags

CCSS.6.RP.A.3C

The graph of f(t) = ax² +bx +c, the height of a golf ball hit after t seconds, is shown. The point P(2, 70) represents the height of a bird at a given point in time. Which of the following expressions correctly compares the height of the ball and the height of the bird at that point in time?

• f(70) > 2

• f(70) < 2

• f(2) > 70

• f(2) < 70

If 2y = x + 40 and 3x = y + 20, what is the value of x + y?

• 28

• 34

• 38

• 44

Tags

CCSS.8.EE.C.8B

CCSS.HSA.REI.C.6

• 2.3

• 2.4

• 2.5

• 2.6

Tags

CCSS.HSG.CO.C.10

To the nearest tenth of a percent, what percent of states with a state-level sales tax do not have a state-level income tax?

• 13.3%

• 12.1%

• 14.4%

• 8.6%

Tags

CCSS.6.RP.A.3C

a and b are constants. If the equation has no solution, which of the following statements must be true about a and b ?

• a does not equal 3 and b does not equal 4

• a = 3 and b does not equal -4

• a = 3 and b = -4

• a = 3 and b = 4

Tags

CCSS.8.EE.C.7A

a and b are constants. If the equation has no solution, which of the following statements must be true about a and b ?

• a does not equal 3 and b does not equal 4

• a = 3 and b does not equal -4

• a = 3 and b = -4

• a = 3 and b = 4

Tags

CCSS.8.EE.C.7A

• 3

• 5

• 6

• 8

Tags

CCSS.HSA-REI.B.4B

Based on the system of equations, what is the value of 5x + 5y?

• 500

• 3000

• 1500

• 2500

Tags

CCSS.8.EE.C.8C

Which of the following is an equation of the line in the xy-plane?

• x + y = -4

• x - y = -4

• x + y = 4

• x - y = 4