Which of the following quadratic regression equations best fits the data shown below?
X -4 -3 -2 -1 0 1 2 3 4
y 60 34 10 6 8 14 20 56 98
O A. y = 4.67x2 + 4.10x+ 2.87
B. y = 2.87 x2 + 2.70x+4.07
c. y = 3.11x2 + 1.20x + 3.64
O D. y = 2.09x2 + 1.30x + 4.61

The heaviest 16% of all men in weight weigh more than how many pounds ?

The average human heart beats 1.15 \cdot 10^51.15⋅10 5 1, point, 15, dot, 10, start superscript, 5, end superscript times per day. there are 3.65 \cdot 10^23.65⋅10 2 3, point, 65, dot, 10, start superscript, 2, end superscript days in one year. how many times does the heart beat in one year? write your answer in scientific notation, and round to one decimal place.

Given: hf || jk; hg ? jg prove: fhg ? kjg to prove that the triangles are congruent by asa, which statement and reason could be used as part of the proof? fgh ? kgj because vertical angles are congruent. jkg ? hfg because vertical angles are congruent. fhg ? jkg because right angles are congruent. hfg ? kjg because alternate interior angles are congruent.