What multiplication expression is equal to 1/2 divided by 4/5?

1/2 times 5/4

Step-by-step explanation:

This is because of the reciprocal. When you divide a number by another you can flip the other and multiply it if it is in fraction form. Example:

10/(1/2)=10*2

answer is c

step-by-step explanation:

81/12=324/x

x=48

step-by-step explanation:

we have

using a graphing tool

see the attached figure

this is a quadratic equation (vertical parabola) open up

the vertex is a > vertex

the domain of the function is all real > interval (-∞,∞)

the range of the function is the > [-6.125,∞)

the function has two x->   and

the function is increasing over the > (0.25,∞)

the function is decreasing over the > (-∞,0.25)