1. Term 1 Week 7 Warm Ups

2. Warm Up 9/21/15 1. Give the percent of area under the normal curve represented by the arrows: 2. A survey shows that 35% will vote yes and 47% will vote no on an issue, with a 6% margin of error. Explain whether there is a clear preference on the issue. Also, determine the number of people surveyed.

3. Warm Up 9/22/15 3. Give the percent of area under the normal curve represented by the arrows: 4. For a normally distributed random variable x with μ = 100 and σ = 16, find the probability that x > 100.

4. Warm Up 9/23/15

5. Warm Up 9/25/15 7.Add or subtract. Put the answer in standard form, find the leading coefficient, degree, number of terms, and name the polynomial. a. (- 36x 2 + 6x – 11) + (6x 2 + 16x 3 – 5) b. (5x 3 + 12 + 6x 2 ) – (15x 2 + 3x + 2) 8.Multiply the polynomials: (x 2 – 5)(x 2 + 7x + 3)