Write x2 + 12x + 6 = 0 in vertex form using the completing-the-square method. (2 points) a
(x - 12)2 - 30 = 0

b
(x - 6)2 + 36 = 0

c
(x + 6)2 - 30 = 0

d
(x + 12)2 + 36 = 0

according to the triangle sum theorem, all the angles in a triangle must add up to 180 degrees. if we know one angle is already 90, we do 180-90=90. the other 2 angles must add up to 90, exactly.

step-by-step explanation:

a

step-by-step explanation:

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answer: it is a.,b.,d.

step-by-step explanation:

yes, gavin is right.

step-by-step explanation:

gavin is correct. 

this problem is about converting 9% per year to how many percent per quarter. the rate is still the same. it only differed in the time period. so, through dimensional analysis,

9% per year  × (1 year / 4 quarters) = 2.25% per quarter

if he was asked to convert 9% per year to how many percent per quarter  compounded quarterly, then you will not simply divide by four. this is because compounding is not linear.

hope this , have a good day. c;