Answer:
2k
Step-by-step explanation:
-k+3k=3k-k=2k
construction = divide the figure into two parts.
now we have triangle abd and bdc.
first calculate the area of abd.
area of triangle= 1/2×base ×height
area of triangle= 1/2×18×7.5
area of triangle=67.5cm²
second calculate area of bdc
area of triangle=1/2×15.6×11.7
area of triangle=91.26cm²
area of the figure=area of abd + area of bdc
area of the figure=67.5cm²+ 91.26cm²
area of figure=158.76 cm².
Step-by-step explanation:
2.5_3.5x=8_4x_6
_3.5x=0.5_4x
_7.5x =0.5
x=_7.5÷0.5
Divide both sides by 3:
|4x + 6| = 8
Now remove the absolute value:
4x + 6 = 8
or
4x + 6 = -8
Subtract both sides by 6:
4x = 2
or
4x = -14
Divide both sides by 4:
x = 1/2
or
x = -7/2
Final answer: x = 1/2 or x = -7/2
