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Un = a + ( n - 1 ) b
U1.000 = 2 + ( 1.000 - 1 ) 6
U1.000 = 2 + ( 999 ) 6
U1.000 = 2 + 5.994
U.1000 = 5.996
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What is the volume of a rectangular prism with length 7 cm, width 2 cm, height 5 cm?
1 answer:
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Use variables and set up equations.
Next, get one variable with equal coefficients.
Then get it alone on one side.
Now we can use substitution. Since
, substitute 
for 
in the other equation and you'll get an equation with just one variable to simplify and solve.
We can then use
in an earlier equation to find 
.
Next, get one variable with equal coefficients.
Then get it alone on one side.
Now we can use substitution. Since
We can then use