Given: mEDF = 120°; mADB = (3x)°; mBDC = (2x)° Prove: x = 24


What is the missing reason in step 3?


vertical angles are congruent

substitution

definition of congruency

definition of equality

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The table below shows the height of a ball  x  seconds after being kicked.  what values, rounded to the nearest whole number, complete the quadratic regression equation that models the data? f(x)  =  x2  +  x  +  0based on the regression equation and rounded to the nearest whole number, what is the estimated height after 0.25 seconds?   feet

How do you find the area of a triangle

List the sides of δrst in in ascending order (shortest to longest) if: a ∠r =x+28°, m∠s = 2x+16°, and m∠t = x+12°