Three friends are playing a video game where their
characters get swallowed
by the floor at regular
intervals and then
0-0-0
respawn immediately.
Gina's character
respawns every 20
seconds.
Helen's character
respawns every 30
seconds.
Jessica's character
respawns every 18
seconds.
How often will their
characters respawn at
the same time?

every 180 seconds. Gina will respawn 9 times Helen will respawn 6 times and Jessica will respawn 10 times

answer: the value of x is 7cm

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: