The final exam scores of the 32 students in a physics class are provided below. 55 32 43 72506127 59 46 74 53 44 63 96
53 60 47 36 92 58 80 52 63 42 68 56 30 49
39
61
65
50
What is the 20th percentile?

explanation:

infrared radiation has wavelength in the range between 700 nm and 1 mm. lets' convert these values into scientific notation, keeping in mind that:

let's start from the lower value, we have:

(we moved the dot two places to the left, so we increased the exponent by 2 units, from -9 to -7)

the higher value is:

so, the range of wavelength of infrared radiation is:

he earned 78.75 in interest.

step-by-step explanation:

slope =   (y2 -y1) ÷ (x2 -x1)

slope = (0 -0) / (-5, -7)

slope = 0 / -12 = 0

the slope of the line is zero.   it is perfectly horizontal.

step-by-step explanation: