What does πr² mean and how do I solve it
2 answers:
That is circle area
A=
r=circle radius
3.14
U do the radios first then what ever your anwser is u multipy it by 3.14
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That would be 12x^3-16x^2+3x-4
The first step can be subtracting 2x from both sides leaving the equation with 6x + 3 = -15
25.3, reflections do not change the length of something and if it can be mapped on to it they should be the same
Step-by-step explanation:
tanA=8/15 and tan B=40/9
tan(A+B)=(tanA+tanB)/1-tanAtanB
(8/15+40/9)/1-(8/15×40/9)
=-672/185
the answer to the first question would be 
the answer to the second question will be 
