U Tin is planning a dinner party in his garden lawn. He invited 22 guests. In order to seat them he needs to set card tables, the size that seats one person on each side. He wants to arrange the tables in a big rectangle shape so that all 22 guests can sit in one large table. What is the smallest number of card tables that U Tin needs to arrange?

loloo

step-by-step explanation:

lololool

in 1995, potato plants were taken into space aboard the space shuttle columbia.

step-by-step explanation:

x² + 11x + 18 < 0  

[-11 ± sqrt(121 - 72)]/2 = (-11 ± 7)/2  

solution: (-9, -2)

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: