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with solution

28. The sides of a rectangle are ( x + 2 ) cm and ( y - 3 ) cm. What is the area ? A=lw ​

29.) A triangle has a base of
{x}^{2} - \: 7x \: + \: 11x
2
−7x+11
and a heigth of 4x . what is thr area of the triangle ?
a = \frac{1}{2} bha=
2
1

bh

30.) A car traveled
(2 {b}^{3} \: + \: 3 {b}^{2} \: - 4b \: + \: 1(2b
3
+3b
2
−4b+1
km in (2b-1) hour . What is the average of speed of the car ? average speed =
\frac{distance \: trvelled}{time \: take}
timetake
distancetrvelled



Sagot :

Answer:

Umm sorry I don't know bb pero goodluck

Step-by-step explanation:

ma lalaman mo den yang answer dyan