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Earn +20 ptsQ: What is C equals 2r for r?
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How do you solve 2r-1 equals 9?
2r-1=9 2r =10 r =5
R plus s equals 4 2r plus 3s equals 8?
r + s = 4 and 2r + 3s = 8 multiply the first equation by 2 giving 2r + 2s = 8 subtract this from the second equation giving s = 0 So r = 4 and s = 0.
What is the answer of R equals 11m C equals?
The answer depends on what R and C are.
16r2 plus 18r plus 5 equals 0?
Solving for r: 16r2+18r+5=0 (2r+1)(8r+5)=0 2r+1=0 and 8r+5=0 2r=-1 .......... 8r=-5 r= -1/2 ........ r= -5/8
What formula equates to pie?
any formula with pi in it can be switched around so that pi is on one side of the equation and everything else is on the other side. ex. C = circumference of a circle r = radius of a circle C = 2 * pi * r or C / 2 = pi * r or C / (2r) = pi Therefore: pi = C / (2r)
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