A decorative tile, features an image meant to resemble a butterfly. The wings are two semicircles, each with radius 6.4 centimeters. The head is a quarter circle with radius 3.1 centimeters. What is the total area of the butterfly image on the tile? Use 3.14

answer: what in the world is this

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:

the answer is b