The function f has the property that as x gets sufficiently close to 4, but not equal to 4, the values of f(x) get closer and closer to –1. Which of the following statements must be true? A) f(4) = –1

B) f(–1) = 4

C) lim (x-->4) f(x) = -1

D) lim (x-->-1) f(x) = 4

E) ) f(x) is continuous at x = 4

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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:

answer: b

step-by-step explanation: