Following the lead of the national wildlife federation, the department of the interior of a south american country began to record an index of environmental quality that measured progress and decline in the environmental quality of its forests. the index for the years 2004 through 2014 is approximated by the functioni i(t) = 1/3t^3 − 5/2t^2 + 80 (0 ≤ t ≤ 10) where t = 0 corresponds to 2004. for what years is the quality of the forests in this country improving?

After 2009 the quality of the forests in this country improving.

Step-by-step explanation:

Consider the provided function.

Substitute f'(t)=0.

It is given that  (0 ≤ t ≤ 10)

The test interval are (0,5) and (5,10)

For (0 < t < 5) the value of

For (5 < t < 10) the value of

Hence, the function is increasing from (5,10).

t = 0 corresponds to 2004.

Therefore, after 2009 the quality of the forests in this country improving.

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:

i think it would be c

mark brainliest if im right

step-by-step explanation: