There were 45 athletes who came to practice yesterday and 30 students who came to practice today. Find the percent of change. Round to the nearest whole percent, if necessary. a67% b 150% с 50% d 33%

c. side angle side. u shares the same sides

180-142=38 for the acute angle next to the entry

90+38=128

180-128=52

a=52

step-by-step explanation:

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: