A) what are the coordinates of points P and Q? b)Evaluate f(b)
c) solve f(x)=e for x
d)suppose c=f(z) and z=f(x).what is x?
e) suppose f(b)=-f(d).what additional information does this give you?

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:

my computer is slow i can not see it sorry

93-8=85

855=17

17*4=68

there are 68 purple marbles in that bag