Answers FL-1200330-Algebra 2 Sem 1 - FlexLiteral Equations

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The formula gives the partial sum of an arithmetic sequence. What is the formula solved for an?

a Subscript n Baseline = StartFraction 2 uppercase S minus a Subscript 1 Baseline n Over n EndFraction

a Subscript n Baseline = StartFraction 2 uppercase S + a Subscript 1 Baseline n Over n EndFraction

a Subscript n Baseline = 2 uppercase S + a Subscript 1 Baseline n + n

a Subscript n Baseline = 2 uppercase S minus a Subscript 1 Baseline n + n

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The formula for the area of a regular polygon is . What is the equation solved for a?

a = 2 uppercase A

a = 2 uppercase A minus p

a = StartFraction 2 p Over uppercase A EndFraction

a = StartFraction 2 uppercase A Over p EndFraction

If , which equation is solved for t?

I – pr = t

StartFraction uppercase I minus p Over r EndFraction = t

StartFraction uppercase I Over p r EndFraction = t

I + pr = t

When is solved for c, one equation is Which of the following is an equivalent equation to find c?

c = 10 b minus 10 minus 5

c = (10 b minus 10 minus 5) squared

c = StartFraction (10 b minus 2) squared Over 25 EndFraction

c = StartFraction (10b minus 10) squared Over 25 EndFraction

The selling price, s, of an item is s = c + mc, where c is the cost of the item and m is the percent markup based on cost. What is the formula solved for m?

m = StartFraction s minus c Over c EndFraction

m = StartFraction s + c Over c EndFraction

s minus c = m

s + c = m

Remmi wrote the equation of the line He solved for x and got Which of the following is an equivalent equation for x?

x = y minus eleven-thirds

x = y + seven-thirds

x = 3 (y minus two-thirds)

x = 3 (y + two-thirds)

A student solves the equation using the steps in the table. Original equationCross multiplicationDistributive propertySubtraction property of equality5 = xWhich method of solving for the variable could be used instead of cross multiplication?

distributing x + 3 and then 3x + 5 to both sides of the equation

distributing x – 3 and then 3x – 5 to both sides of the equation

using the multiplication property of equality to multiply both sides of the equation by 10

using the multiplication property of equality to multiply both sides of the equation by

The formula for the nth term of an arithmetic sequence can be found using the formula . Which of the following is equivalent to this equation?

n = a Subscript n Baseline + a Subscript 1

n = StartFraction a Subscript n Baseline + a Subscript 1 Baseline minus 3 Over d EndFraction

n = a Subscript n Baseline minus a Subscript 1

n = a Subscript n Baseline minus a Subscript 1 Baseline + d Over d EndFraction

The area of a sector of a circle is given by the equation , where r is the radius of the circle and S is the angle measure of the sector. If Mia solved this equation for S, which of the following equations did she write?

360 uppercase A + pi r squared

360 uppercase A minus pi r squared

StartFraction 360 + uppercase A Over pi r squared EndFraction

StartFraction 360 uppercase A Over pi r squared EndFraction

The final velocity, V, of an object under constant acceleration can be found using the formula , where v is the initial velocity (in meters per second), a is acceleration (in meters per second), and s is the distance (in meters). What is the formula solved for a?

uppercase V squared minus v squared minus 2 x = a

uppercase V squared minus v squared + 2 s = a

StartFraction uppercase V squared minus v squared Over 2 s EndFraction = a

StartFraction uppercase V squared plus v squared Over 2 s EndFraction = a

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