2x^2-4x=t solve for t

Which point is on the line y=-2+3? (-2,-1) (3,3) (3,-3) (-3,-9)

Find the vertex of the function given below y=x^2-6x+1

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.