In an auditorium, there are 9 rows of seats with 18 seats in each row .There also 6 rows of seats with 24 seats in each row. How many seats are ther ein the auditorium? Estimate first. Then checkfor reasonableness.

306

Step-by-step explanation:

You multiply 9 by 18 to see how many chairs are there, you then get 162. Then to see the next 6 rows you multiply 6 by 24 which gives you 144. You add both to get 306. Hope it helped :)

(-5,-28)

i graphed to on desmos.

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: