One of the steps misaki used to solve an equation is shown below.

which property justifies the step shown?

2q(q+4)=10 2q^(2)+8q=10

multiplicative identity property
associative property
commutative property
distributive property
inverse property

Distributive property

Step-by-step explanation:

The given equation is:

To solve this equation, we expand the left hand side using the distributive property to obtain:

That was exactly what Miskai did.

Therefore the property that justifies his step shown is the distributive property.

This property says that, if a, b, and c are real numbers then,

solution:

as, mean is defined as sum of all the observations divided by total number of observations.

and , median is mid value of the data whether arranged in ascending order or descending order.

consider, roadsters:

2,3,4,5,6,7,8,9

mean =

also, median= , because number of observations is even, so median is mean of two mid values.

now, coming to bandits

2,3,4,5,6

mean =  

median = 4, as number of observations is odd.

so, roadsters has greater median as well mean than bandits.

→option a is true about the repairs performed on 2 types of cars:

bandits have lower median and mean than roadsters.