Directions: Change the following decimal numbers to fractions or mixed numbers. Reduce answers, if possible.
1).25
5) 16
9) 07
2).4
6) .625
10) 1875
3) 3.8
7) 16.31
11) 42.325
4) .75
8) 3.35
12)7.37

pls help i am so confused :(

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:

use distributive property on all like terms and change your signs if you have a double negative or if you have positive/negative

the height of the surface increases from the center out to the sides of the road.

step-by-step explanation:

as we move out we move away from the x-axis.

and as mentioned in the problem statement that height of a road increases when we move away from the center x.

hence proved that 3rd option

the height of the surface increases from the center out to the sides of the road.

is the correct option.