The lengths of the sides of a triangle are 3x, 5x – 12, and x + 20. find the value of x so that the triangle is isosceles.

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:

where is the graph

step-by-step explanation: