7 because if you multiply f by x you get 7
Step-by-step explanation:
Using the distance formula
√(x1-x2)²+(y1-y2)²
√(-3+5)²+(7-2)²
√(2)²+(5)²
√4+25
√29 units
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2 were older than 40 and the rest were younger then 20
X - 2 = - 2x + 7
3x = 9
x = 3
f(x) = g(x) when x = 3.
Answer:The third angle would be 60⁰
Step-by-step explanation: Since a triangle adds up to 180⁰, 40 + 80 = 120⁰. And 180 - 120 = 60⁰.
