Answer:
231cm squared
Step-by-step explanation:
9 x 22 = 198.
198 / 2 = 99
triangle area = 99
15 x 22 = 330
total area = 330
330 - 99 = 231
120 > x
multiply -4 on both sides, -30 * -4 = 120
since you multiplied by a negative you change the sign
<3
The correct answers are:
xii) (x+7)(x+7)
=x^2 +7x +7x +49
=x^2 +14x +49
xiv) (x+4)(x+2)
=x^2 +2x +4x +8
=x^2 +6x +8
xvi) 5x^3 ÷ 5x^3
=1
