Which is the same as 98.52 ÷ 10? is it 9.852 ÷ 10 985.2 ÷ 10 985.2 ÷ 100 9.852 ÷ 100

In the coordinate plan (-6,9) b (3,9) c (3,3) def is shown in the coordinate plan below

The equation x2 – 1x – 90 = 0 has solutions {a, b}. what is a + b?

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.