Ascuba diver was exploring a reef 77.5 m below sea level. the diver ascended to the surface at a rate of 12.5 m/min

(a) write an
equation to model the situation. use the formula d = rt.

(b) explain why it is reasonable to write the distance, d , as a positive number? explain.

(c) how long did it take the diver to reach the surface?

yes

yes yes yes

the correct answer is

c. 4

step-by-step explanation:

the given polynomial is

the degree of the polynomial is the highest exponent which is 4.

the -4 is called the leading coefficient.

this polynomial has only one term so it is a monomial.

the correct answer is option c.

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: