In the accompanying table, x is the tensile force applied to a steel specimen in thousands of pounds, and y is the resulting elongation in thousandths of an inch: X 1 2 3 4 5 6 Y 14 33 40 63 76 85 Find the equation of the least squares line and use it to predict the elongation when the tensile force is 3.5 thousand pounds.
In the accompanying table, x is the tensile force applied to a steel specimen in thousands of pounds, and y is the resulting elongation in thousandths of an inch:
X 1 2 3 4 5 6
Y 14 33 40 63 76 85
Find the equation of the least squares line and use it to predict the elongation when the tensile force is 3.5 thousand pounds. painal porra de latina amadora
![A copper and a steel wire having same length and diameter are joined
end-to-end. When a force is applied at the end of the wire, the net
length of the wire increases by 1cm. The wires will have:
(a) same stress and same strain
(b) different stresses and different strain
(c) different stresses and same strain
(d) different strains and same stress
[1]
(](https://static.ahvideoscdn.net/wp-content/uploads/hkuovh7a44/a-copper-and-a-steel-wire-having-same-length-and-diameter-are-joinedend-to-end-when-a-force-is-applied-at-the-end-of-the-wire-the-netlength-of-the-wire-increases-by-1cm-the-wires-will-havea.jpg)
