4. please help asap i’ll give u brainliest

1. are the triangles similar and if so why? what is the value of x? show your work.

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.

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)