Day 1 - 7 Practice Review

If the equation (x + 10)x = 0 is true, which statement is also true according to the zero product property?

• Only x = 0

• Either x = 0 or x + 10 = 0

• Only x + 10 = 0

What are the solutions to the equation (10-x)(3x-9)=0?

• -10 and 3

• -10 and 9

• 10 and 3

• 10 and 9

Solve the equation (-3x - 15)(x + 7) = 0​ ​

• -5
• -7
• 5
• 7
• 3

At the end of each year, 10% interest is charged on a $500 loan. The interest applies to any unpaid balance on the loan, including previous interest. Which expression represents the loan balance after two years if no payments are made?

• 500 * (1 + 0.10)^2
• 500 + 500 * 0.10 * 2
• 500 * (1 + 0.10)^3
• 500 * (1 + 0.10)

• The weight of the milk container decreases 13% over time.

• The weight of the milk container increases 87% each year.

• The milk container gains 13% weight as time passes.

• The weight of the milk container decreases 87% each time.

• 2.3 ounces

• 0.87 ounces

• 1.13 ounces

• 102.3 ounces

Write the equation of a line parallel to the line x = 6 through the point (-2, -3).

• y = -3
• x = 6
• x = -2
• y = x + 3

Write the equation of a line perpendicular to the line x = 6 through the point (-2, -3).

• x = -2
• y = 6
• y = -3
• y = -2

• C
• E
• A
• B
• D

What is the IQR?

• 5 branches

• 7 branches

• 12 branches

• 10 branches