Answer:
D
Step-by-step explanation:
The first column has 10 cubes.
The question states that the other two columns each have 4 fewer cubes than the first column.
10 - 4 = 6
This means that each of the other 2 columns have 6 cubes each.
Column 1: 10 Cubic units
Column 2: 6 Cubic units
Column 3: 6 Cubic units
10 + 6 + 6 = 22
Anna’s Figure has 22 Cubic Units
You divide by 5/13. Remember when dividing fractions you multiply by the reciprocal. 5/13 cancels on the left side, leaving t.
So here you have -9/(5/13), but we can put -9 as -9/1, then instead of dividing by 5/13, multiply by 13/5: 117/5. This evens out, when divided, to t=23.4
A = 1/2h(b + B)
2A = h(b + B)
h = 2A/(b + B)
Answer:
x^3 - 5x^2 + 2x + 8
= (x^3 - 4x^2) - (x^2 - 4x) - (2x - 8)
= x^2(x - 4) - x(x - 4) - 2(x - 4)
= (x^2 - x - 2)(x - 4)
= [x(x - 2) + (x - 2)](x - 4)
= (x - 2)(x + 1)(x - 4)
Hope this helps!
:)