If m ABC = 80°, what is m2DBC? Justify your reasoning. O Using the Angle Addition Postulate, 20+ m2DBC = 80. So, m2DBC = 60° using the subtraction property of equality
O Using the Angle Addition Postulate, 20 + 80 = m_DBC. So, m DBC = 100° using the addition property of equality.
O Using the addition property of equality, 20 + 80 = 100, so mzDBC = 100°.
O Using the subtraction property of equality, 80 - 20 = 60, SO MZDBC = 60°

828. all there is to it!

here, if you ever need with rounding (or other forms of arithmetic/math) again, use this:

thats the rounding one, but if you just click the top left, it shows you all the calculators you may need!

i'm a sophomore in connections, i'd recommend checking on jishka.com they have a large range of questions and answers from our school.

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)

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