ACT math practice

Front

What is the formula to calculate the tip amount based on a total bill?

Back

Tip Amount = Total Bill x Tip Percentage

Front

If a group of people splits a tip equally, how do you calculate each person's share?

Back

Each Person's Share = Total Tip Amount / Number of People

Front

What is the process for adding two vectors?

Back

To add vectors, add their corresponding components: (a1 + b1, a2 + b2).

Front

How do you expand the expression (a + b)(c + d)?

Back

Use the distributive property: ac + ad + bc + bd.

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you isolate a variable in an equation?

Back

Use inverse operations to move terms to one side of the equation.

Front

What are the positive factors of a number?

Back

Positive factors are the integers that can divide the number without leaving a remainder.

Front

What is the result of subtracting two vectors?

Back

To subtract vectors, subtract their corresponding components: (a1 - b1, a2 - b2).

Front

How do you find the equivalent expression for a polynomial?

Back

Combine like terms and simplify the expression.

Front

What is the relationship between the coefficients and roots of a polynomial?

Back

The coefficients of a polynomial can be used to determine the sum and product of its roots.