Acylindrical garbage can has a radius of 2.8ft and holds 86.21 cubic feet of trash. whats the height? a) 3.5ftb) 9.8ftc) 5.2ftd) 1.9ft

Correct choice is A

Step-by-step explanation:

The volume of the cylinder can be calculated using formula

where r is the base circle radius  and h is the height of the cylinder.

In your case,

then

step- i d k and i d c : )

you: : 0

bye

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: