Joyce says that the figure below made I cm cubes has a volume of 5 cubic centimeters explain her mistakes

see the explanation

Step-by-step explanation:

The picture of the question in the attached figure

we know that

The volume of a cube is equal to

where

b is the length side of the cube

In this problem we ha a cubes with a length side equal to 1 cm

so

substitute

The volume of each cube is equal to one cubic centimeter

so

To find out the volume of the figure, multiply the number of cubes by 1 cm^3

Looking at the figure

The total number of cubes is 6

therefore

The total volume is

Joyce's mistake was counting 5 cubes instead of 6 (there is one cube that is not in sight)

no, the equation would be invalid since they are both not equal.

step-by-step explanation:

here you got

4y-6+4y 2-9

first, you would simplify the equation on the form.

4y-6+4y 2-9

then, move all the terms that contains a y to the left and all the other terms to the right.

+4y-4y+-9-6

finally, you will simplify the left and the right side of the equation.

y=-3

the answer is c

hope this !