5 questions for algebra:
1. Solve for r.
s=2πrh
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A. 2πsh=r
B. s2π=r
C. s2πh=r
D. s2=r
2. Solve for c.
a(b − c)=d
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A. c=ab − d
--------
b
B. c=ab + d
---------
a
C. c=d − ab
----------
a
D. c=ab − d
---------
a
3. Solve for q.
s = 4p + 4q
_________________
q= s − 4p
q= s − 4p
--------
4
q= 4p − s
----------
4
q= s − 4p
--------
p
4. 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.
A. a = 2A − b
---------
h
B. a= 2A/h + b
C. a= 2A/h − b
D. a= Ah/2 − b
5. 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
---------
2
l= 2P − w