5 questions for algebra:

  1. Solve for r.

s=2πrh

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A2πsh=r
Bs2π=r
Cs2πh=r
Ds2=r

  1. Solve for c.

a(b − c)=d

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Ac=ab − d

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b

Bc=ab + d

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a

Cc=d − ab

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a

Dc=ab − d

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a

  1. Solve for q.

s = 4p + 4q

_________________

q= s − 4p

q= s − 4p

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4


q= 4p − s

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4


q= s − 4p

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p

  1. For a trapezoid, the following formula relates the area A, the two bases A and B, and the height H.

A=(a+b)2h

Solve for a.

Aa = 2A − b

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h

Ba= 2A/h + b
Ca= 2A/h − b
Da= Ah/2 − b
  1. The formula for the perimeter of a rectangle is P=2(l+w).

Solve for l.

l= p/2 − w

l= P/2 + w

l= p − w

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2

l= 2P − w