1. Write (x^2) + 3x – 1 in the form ((x + a)^2) + b

Step-by-step explanation:

(x^2) + 3x – 1 = x² + 2×(3/2)x - 1

                      = [(x + 3/2)² - (3/2)²] - 1

                      = (x + 3/2)² - 9/4 - 1

                      =  (x + 3/2)² - (9/4 + 4/4)

                     = (x + 3/2)² - 13/4

2 apples

step-by-step explanation:

taking away equals subtraction. 6-4=2

answer: 75°

step-by-step explanation:

∠esk is the supplement of ∠edk, so is 100°. ∠esd = 1/2·arc ed, so is 25°.

since ∠esk = ∠esd + ∠dsk

you have 100° = 25° + ∠dsk . .

fill in known values 75° = ∠dsk . . . . .

subtract 25°

step-by-step explanation: