Six times a number squared plus five times that number

(a) the volume of the cone is 20/3 in3

hence, option a is correct.

i think its a and d

step-by-step explanation:

jbankston is right, use thhe link and you should find the answer.

step-by-step explanation:

consider the parallelogram shown in the attached image.

in the parallelogram hijk, the length of hk is given as,

from the properties of parallelogram we know that the opposite sides of a parallelogram are parallel to each other and are equal in measure.

therefore, the length of the side ij must be equal to the length of the side hk and that is .

hence, the expression for the length of ij confirms that hijk is a parallelogram.