Use implicit differentiation to find d2y/dx2.xy - x + y = 6
A. 
B. 
C. 
D. 
Answer: A
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Determine the slope and y-intercept for the equation.2x + y = -2
A. slope: m = -2; y-intercept: b = -2
B. slope: m = 2; y-intercept: b = -2
C. slope: m = - 
; y-intercept: b = - 1
D. slope: m = - 1; y-intercept: b = - 
Solve the problem.List all the combinations of 6 objects a, b, c, d, e, and f taken 2 at a time. What is C(6, 2)?
A. ab, ac, ad, ae, af, bc, bd, be, bf, cd, ce, cf, de, df, ef C(6, 2) = 15 B. aa, ab, ac, ad, ae, af, ba, bb, bc, bd, be, bf, ca, cb, cc, cd, ce, cf, da, db, dc, dd, de, df, ea, eb, ec, ed, ee, ef, fa, fb, fc, fd, fe, ff C(6, 2) = 36 C. ab, ac, ad, ae, bc, bd, be, cd, ce, cf, de, df C(6, 2) = 12 D. ab, ac, ad, ae, af, ba, bc, bd, be, bf, ca, cb, cd, ce, cf, da, db, dc, de, df, ea, eb, ec, ed, ef, fa, fb, fc, fd, fe C(6, 2) = 30
Use technology to compute r, the correlation coefficient.The test scores of 6 randomly picked students and the number of hours they prepared are as follows: 
A. .6781 B. -.6781 C. -.2242 D. .2242
Factor completely.15x2 + 4x - 4
A. (15x + 2)(x - 2) B. (3x + 2)(5x - 2) C. (15x + 1)(x - 4) D. (3x - 2)(5x + 2)