A variable is a symbol that stands in for an unknown value in a mathematical expression. We can use any symbol as a variable, but letters are most commonly used. A term is a single number, variable, or a number and a variable multiplied together.
Answer:
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Step-by-step explanation:
Answer:
18.285 in.²
Step-by-step explanation:
3 in. × 4 in. = 12 in.²
A = πr²
A = 12.57 in.²
12.57 in.² ÷ 2 = 6.285 in.²
6.285 in.² + 12 in.²
18.285 in.²
-5(3m+6)=-3(4m-2)
-15m-30=-12m+6
-3m=36
m=-12