ADC is a triangle. AED and ABC are straight lines.

EB is parallel to DC.

Angle EBC=148°

Angle ADC=63°

Work out the size of angle EAB.

You must give a reason for each stage of your working out.

Restrictions on f(x) = 1/x+5 and g(x) = x-2

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.

Which of these triangle pairs can be mapped to each other using two reflections?