What is the effect on the graph of the function f(x) = 2x when f(x) is replaced with f(2/3x)? a)vertical stretchingb)vertical compressionc)horizontal compressiond)horizontal stretching

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.

Solve x+3y=6 and 4x-6y=6 by elimination . show work !

To prove that angle def = angle dgf by sas, what additional information is needed? def congruent to dgf dfe congruent to dfg de congruent to dg dg congruent to gf