All integer are rational number. true or false? explain

true because integers are all positive numbers, their opposites (negatives), and zero

Of course this is true! Rational numbers are numbers that can be witten as fractions. Intergers are whole numbers and their opposites (negative). So 2 and -3 are intergers, but 3.3 is not because it has a decimal/fraction. All intergers can be written as fractions, so all intergers are ratioanal

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:

idk u tell me

step-by-step explanation: