Write as a square of a binomial:
1: 4x^2+12x+9
2: 10xy +0.25x^2+100y^2

1) (2x + 3)^2

2) (.5x + 10y)^2

Explanation:

1) You know this has to be a squared term, so just look for the roots of the first and last terms. For the first term, and for the last term, . You can check either by FOIL or the Box Method and you will see that it comes out to the initial formula.

2) Once again, look for the square roots of the first and last terms. In this case, you have to sort the initial equation out so that it looks like a normal trinomial, this is what you get:

Then you just take the square roots of the first and last terms, which are 0.5x and 10y, respectively.

answer: secession

secession, as it applies to the outbreak of the american civil war, comprises the series of events that began on december 20, 1860, and extended through june 8 of the next year when eleven states in the lower and upper south severed their ties with the union. the first seven seceding states of the lower south set up a provisional government at montgomery, alabama. after hostilities began at fort sumter in charleston harbor on april 12, 1861, the border states of virginia, arkansas, tennessee, and north carolina joined the new government, which then moved its capital to richmond, virginia. the union was thus divided approximately on geographic lines. twenty-one northern and border states retained the style and title of the united states, while the eleven slave states adopted the nomenclature of the confederate states of america.

explanation:

d. islands off the coast of newfoundland