A GROUP OF 266 PERSONS CONSISTS OF MEN, WOMEN AND CHILDREN. THERE ARE FOUR TIMES AS MANY MEN AS CHILDREN, AND TWICE AS MANY WOMEN AS CHILDREN. HOW MANY OF EACH ARE THERE? pls answer this asap

the answer is a if my teacher taught me correct

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:

4+4+2x

or

2x+8

step-by-step explanation:

take the logarithm of both sides (the base of the log doesn't matter):

apply the exponent property - this says that :

distribute the log terms on both sides:

group like terms together:

divide through both sides by the coefficient on :

you can do some additional rewriting here using the properties of the logarithm to simplify things if you like: