Which statements are true?
Select each correct answer.
A. All triangles have 3 straight side...
Mathematics, 11.05.2021 21:10 dessera12
Which statements are true?
Select each correct answer.
A. All triangles have 3 straight sides.
B. Only some triangles are polygons.
C. All triangles are plane figures.
D. All triangles have 3 angles.
E. All triangles have one right angle.
Answers: 3
Mathematics, 21.06.2019 18:00
Solve this equation using substitution. {4x + y = β2} {4x + 6y = 44}
Answers: 1
Mathematics, 21.06.2019 19:30
Solve for x and y: 217x + 131y = 913; 131x + 217y = 827
Answers: 1
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
Answers: 3
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