Mario simplified the expression as shown.

which statement explains mario’s error?

Last option

Step-by-step explanation:

1. According to the properties of exponents, you have that:

2. Then, he must simplify the expression as following:

3. Therefore, as you can see, should have also applied the negative exponent to 4 to get

The correct answer option is He should have also applied the exponent -3 to 4 to get .

Step-by-step explanation:

The following expression was to be simplified by Mario:

Given this expression, we need to apply this rule on it in order to simplify:

So we would get:

This would be the right simplification for the given expression but by looking at Mario's work shown, we can conclude that:

He should have also applied the exponent -3 to 4 to get .

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,