Last tuesday was silly hat day at carson's school. of the 2,000 students at the school, 60% wore a silly
hat. how many students wore a silly hat?
students

1,200

Step-by-step explanation:

because you take 60% and make it .60 and multiply it by 2,000 and you get 1,200

for this case we have by definition, if two lines are perpendicular, then the product of their slopes is -1.

then, given the following line:

so,

we are looking for m_ {2}:

then, the line is given by:

we find "b" replacing the given point:

finally, the equation 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: