Common Core Algebra Regents Review #2

Which expression is equivalent to 16x²-36?

• 4(2x-3)(2x-3)

• 4(2x+3)(2x-3)

• (4x-6)(4x-6)

• (4x+6)(4x+6)

Tags

CCSS.HSA.APR.C.4

What is the solution set of the equation (x-2)(x-a) ?

• -2 and a

• -2 and -a

• 2 and a

• 2 and -a

Tags

CCSS.HSA-REI.B.4B

Boyle's Law involves the pressure and volume of gas in a container. It can be represented by the formula P₁V₁=P₂V₂. When the formula is solved for P₂, the result is

• P₁V₁V₂

• 
• 
• 

Tags

CCSS.HSA.CED.A.4

Which expression is equivalent to 2(3g-4)-(8g+3)?

• -2g-1

• -2g-5

• -2g-7

• -2g-11

Tags

CCSS.6.EE.A.3

A car leaves Albany, NY, and travels west toward Buffalo, NY.

The equation D=280-59t can be used to represent the distance, D, from Buffalo after t hours. In this equation, the 59 represents the

• car's distance from Albany

• speed of the car

• distance between Buffalo and Albany

• number of hours driving

Which point is a solution to the system?

• (1, 1/2)

• (0, 6)

• (-1/2, 5)

• (-3, 2)

The daily cost of production in a factory is calculated using c(x)=200+16x , where x is the number of complete products

manufactured. Which set of numbers best defines the domain of c(x)?

• integers

• positive real numbers

• positive rational numbers

• whole numbers

A graph of average resting heart rates is shown below.

The average resting heart rate for adults is 72 beats per

minute, but doctors consider resting rates from 60-100

beats per minute within normal range.

Which statement about average resting heart rates

is not supported by the graph?

• A 10-year-old has the same average resting heart rate as a 20-year-old

• A 20-year-old has the same average resting heart rate as a 30-year-old

• A 40-year-old may have the same average resting heart rate for ten years

• The average resting heart rate for teenagers steadily decreases