Monique collects data from a random sample of seventh graders in her school and finds that 8 out of 12 seventh graders participate in after-school activities. Write and solve a proportion to estimate the number of seventh graders n who participate in after-school activities if 84 seventh graders attend Monique's school. Solve the proportion for n.

2.56 is the width of the garden

step-by-step explanation:

step-by-step explanation:

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: