Answer:
Since the 0.5 can be expressed (written as) as the fraction 1/2, 0.5 is a rational number. That 0.5 is also called a terminating decimal.
Step-by-step explanation:
Answer/Step-by-step explanation:
Area of trapezium = ½*(AD + BC)*AB
Area = 42 cm²
AD = (x + 8) cm
BC = (x + 5) cm
AB = x cm
Plug in the values into the equation
42 = ½((x + 8) + (x + 5))*x
42 = ½((x + 8 + x + 5)*x
42 = ½(2x + 13)*x
Multiply both sides by 2
42*2 = (2x + 13)*x
84 = 2x² + 13x
2x² + 13x = 84
Subtract both sides by 84
2x² + 13x - 84 = 0
Answer:
y=-6x-57 is your answer.
Step-by-step explanation:
You will use this equation:
y-y1=m(x-x1). The y1 is -2 and the x1 is -9.
y-(-3)=-6(x-(-9)). You will the distribute the -6 into the x and the -9.
y+3=-6x-54. You will then subtract 3 to both sides.
y=-6x-57 is your answer.
