jaymie wants to construct congruent angles with a compass and straightedge, while annie wants to construct congruent segments with a compass and straightedge. describe the similarities and differences between their construction steps.

Which matrix multiplication is possible?

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.

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?