6. Find value of 5x-4x2+3 at

a) x=0 b) x=-1 c) x=2

7. Divide 3x4-4x3-3x-1 by x-1.

8. Divide x3+1 by x+1.

9. Use suitable identities to find product

a) (x+4)(x+10)

b) (x+8)(x-10)

c) (3x+4) (3x-5)

d) (3-2x)(3+2x)

10. Evaluate the following product without multiplying directly:

a) 103×107

b) 95×96

c) 104×96

Which must be true in order for the relationship △zyv ~ △xwv to be correct? zy ∥ wx ∠z ≅ ∠y and ∠w ≅ ∠x zv ≅ vy and wv ≅ vx ∠z ≅ ∠x and ∠w ≅ ∠y

(b) suppose that consolidated power decides to use a level of significance of α = .05, and suppose a random sample of 100 temperature readings is obtained. if the sample mean of the 100 temperature readings is x⎯⎯ = 60.990, test h0 versus ha and determine whether the power plant should be shut down and the cooling system repaired. perform the hypothesis test by using a critical value and a p-value. assume σ = 5. (round your z to 2 decimal places and p-value to 4 decimal places.)

Write a similarity statement for the similar triangles. afgh ~ a