August 2024 M.C

• (x + 3)(x - 4)

• (x - 3)(x + 4)

• (x + 2)(x - 6)

• (x - 2)(x + 6)

Tags

CCSS.6.EE.A.3

At Adelynn’s first birthday party, each guest brought $1 in coins for her piggy bank. Guests brought nickels, dimes, and quarters for a total of $28. There were twice as many dimes as nickels and 12 more quarters than nickels. Which equation could be used to determine the number of nickels, x, that her guests brought to her party?

• .05x + .10x + .25x = 28

• .05x + .10(2x) + .25(x + 12) = 28

• .05(2x) + .10x + .25(x + 12) = 28

• .05(x + 12) + .10(2x) + .25x = 28

Tags

CCSS.8.EE.C.7B

A student creates a fourth-degree trinomial with a leading coefficient of 2 and a constant value of 5. The trinomial could be

• 2x⁴ + 3x² + 5

• 2x⁴ + 5x + 3

• 4x² - 3x + 5

• 4x³ - 5x² + 3

When solving the equation 4x² - 16 = 0, Laura wrote 4x² = 16 as her first step. Which property justifies Laura’s first step?

• distributive property of multiplication over addition

• multiplication property of equality

• commutative property of addition

• addition property of equality

Tags

CCSS.HSA.REI.A.1

Which expression results in an irrational number?

• √3 · √3

• 5 · √81

• -2/3 + 1/4

• 1/3 + √3

Tags

CCSS.7.NS.A.1D

Which equation has the same solutions as x² + 6x - 18 = 0?

• (x + 3)² = 24

• (x + 3)² = 27

• (x + 6)² = 24

• (x + 6)² = 27

Tags

CCSS.HSA-REI.B.4B

A bookstore owner recorded the number of books sold and the profit made selling the books. What is the average rate of change, in dollars per book, between 100 and 350 books sold?

• 0.50

• 0.67

• 1.50

• 2.00

Tags

CCSS.8.F.B.4

CCSS.HSF.IF.B.6

The amount of money a plumber charges is represented by the function p(h) = 45 + 90h . The best interpretation of the y-intercept of this function is that the plumber charges

• (1) $45 to come to the house

• (2) $45 per hour that he works

• (3) $90 to come to the house

• (4) $90 per hour that he works

Tags

CCSS.HSF.LE.B.5