Literal Equations Test Flashcards

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Questions and Answers

What is an equivalent equation solved for V in the equation d = m/v?

m/d = V

Which are equivalent equations for the lateral area of a right cone, LA = πrs? (Select all that apply)

  • s = LA / Ï€r (correct)
  • s = Ï€rLA
  • r = LA / Ï€s (correct)
  • LA = Ï€rs

What is the equation solved for C in K = C + 273.15?

C = K - 273.15

What is an equivalent equation solved for t in f = v + at?

<p>t = (f - v) / a</p> Signup and view all the answers

What is an equivalent equation solved for g in A = g/t?

<p>g = At / 60</p> Signup and view all the answers

What is an equivalent equation solved for m in y = mx + b?

<p>m = (y - b) / x</p> Signup and view all the answers

What is the solution for a in the equation 7a - 2b = 5a + b?

<p>a = 3/2b</p> Signup and view all the answers

What is an equivalent equation solved for y in a = πxy?

<p>y = a / (Ï€x)</p> Signup and view all the answers

Using the formula w = V/(lh), what is the width of a rectangular prism with a volume of 138.24 cubic inches, height of 9.6 inches, and length of 3.2 inches?

<p>4.5 inches</p> Signup and view all the answers

What is the solution for k in the equation 8k + 2m = 3m + k?

<p>k = m / 7</p> Signup and view all the answers

If F = ma, what is the acceleration of an object with F = 7.92 newtons and m = 3.6 kilograms?

<p>2.2 m/s²</p> Signup and view all the answers

What is the radius of a circle that has a circumference of 16, using the formula C = 2Ï€r?

<p>r = 8</p> Signup and view all the answers

What is an equivalent equation solved for r in C = 2Ï€r?

<p>r = C / (2Ï€)</p> Signup and view all the answers

What is an equivalent equation solved for y2 in m = (y2 - y1) / (x2 - x1)?

<p>y2 = m(x2 - x1) + y1</p> Signup and view all the answers

What is the solution for w in the equation 5w + 9z = 2z + 3w?

<p>w = -7/2z</p> Signup and view all the answers

What is the solution for a in K = 4a + 9ab?

<p>a = K / (4 + 9b)</p> Signup and view all the answers

If S = 2πrh + 2πr², what is the equation solved for h?

<p>h = S / (2Ï€r) - r</p> Signup and view all the answers

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Study Notes

Density Calculation

  • Density (d) is calculated from mass (m) and volume (v) using the formula d = m/v.
  • Rearranging this equation for volume gives V = m/d.

Right Cone Geometry

  • The lateral area (LA) of a right cone is given by LA = Ï€rs.
  • This formula can be rearranged to find slant height (s) as s = LA / (Ï€r) and radius (r) as r = LA / (Ï€s).

Temperature Conversion

  • Kelvin (K) is derived from Celsius (C) using the equation K = C + 273.15.
  • The rearranged formula for Celsius is C = K - 273.15.

Motion Formula

  • The formula for final velocity is f = v + at.
  • To solve for time (t), the equivalent formula is t = (f - v) / a.

Hockey Goalie Statistics

  • Goals against average (A) is calculated with A = g / t * 60, where g is goals scored against the goalie and t is time in minutes.
  • Rearranging for goals gives g = (A * t) / 60.

Slope-Intercept Form

  • The slope-intercept form of a linear equation is y = mx + b, with m representing the slope.
  • To find slope (m), rearranged equation is m = (y - b) / x.

Algebraic Rearrangement

  • From the equation 7a - 2b = 5a + b, rearranging yields a = (3/2)b.

Ellipse Area Calculation

  • The area (a) of an ellipse is calculated by a = Ï€xy, where x and y are half the lengths of the respective diameters.
  • Rearranging for y gives y = a / (Ï€x).

Rectangular Prism Volume

  • The volume (V) of a rectangular prism is determined by V = lwh, where l, w, and h are length, width, and height.
  • For a prism with V = 138.24 in³, h = 9.6 in, and l = 3.2 in, the width (w) is found to be 4.5 in.

Physics: Force and Acceleration

  • The relationship of force (F) to mass (m) and acceleration (a) is expressed as F = ma.
  • Rearranging for acceleration gives a = F / m. For F = 7.92 N and m = 3.6 kg, acceleration results in approximately 2.2 m/s².

Circumference and Radius

  • The circumference (C) of a circle is formulated as C = 2Ï€r.
  • Rearranging for radius (r) gives r = C / (2Ï€). For a circle with C = 16, the radius is calculated as r = 8.

Slope From Ordered Pairs

  • Slope (m) between two points can be found using m = (y2 - y1) / (x2 - x1).
  • To find y2 based on known values, rearranging results in y2 = m(x2 - x1) + y1.

Additional Algebraic Rearrangements

  • From 5w + 9z = 2z + 3w, solving for width (w) yields w = -7/2z.
  • From K = 4a + 9ab, when solving for a, the formula is a = K / (4 + 9b).
  • For the surface area equation S = 2Ï€rh + 2Ï€r² rearranging to solve for height (h) results in h = (S/(2Ï€r)) - r.

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