Ethan is proving that the slope between any two points on a straight line is the same. he has already proved triangles 1 and 2 are similar

Part a : solve - vp + 40 < 65 for v . part b : solve 7w - 3r = 15 for r show your work!

In trapezoid efgh, m∠hef=(4x2+16)∘ and m∠gfe=(5x2+12)∘. find the value of x so that efgh is isosceles.

Which quadratic function best fits this data? x y 1 32 2 78 3 178 4 326 5 390 6 337 a. y=11.41x2+154.42x−143.9 b. y=−11.41x2+154.42x−143.9 c. y=11.41x2+154.42x+143.9 d. y=−11.41x2+154.42x+143.9