Algebraic Formulas

Given the equation I = V/R, rearrange to find R.

• R = V*I

• R = I + V

• R = V/I

• R = I/V

• h = A / (2b)

• h = 2b / A

• h = 1/b

• h = 2A / b

If A = P(1 + rt), rearrange to find P.

• P = A / (1 + rt)

• P = A + rt

• P = A * (1 + rt)

• P = A - rt

Given the formula V = πr²h, rearrange to express h.

• h = V / (r²π)

• h = V / (2πr)

• h = πr²V

• h = V / (πr²)

Rearrange the equation x = (y - b)/m to solve for y.

• y = x + b/m

• y = (x - b) * m

• y = m * x + b

• y = b - m * x

If C = 2πr, rearrange to find r.

• r = 2C / π

• r = C / (2π)

• r = C / (π^2)

• r = C / π

Which of the following is true?

• (a-b)² = a² - b²

• (a + b)² = a² + 2ab + b²

• (a - b)² = a² - 2ab - b²

• (a + b) (a - b) = a² - 2ab + b²

(2p + 3q)(p − 6q)

• 2p² − 12pq + 3pq − 18q²

• 2p² − 12pq + p − 6q

• 2p + 3q + p − 6q

• 2p + 3pq − 18q²

(a – b)²

• (a + b) (a – b)

• (a + b)²

• a² – 2ab + b²

An equation which combines variables with an equal sign is a 

• value

• formulae

• statement 

• operations