-22 is your answer because all you have to do is take 4 away from -18 and you get -22
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:
Step-by-step explanation:
Answer:
that means all the other sides are x-45 and each of the angles are 60 degrees
(i dont know what your asking for)
Answer:
Step-by-step explanation:
7/8 ÷ 3/4 is the same as saying 7/8 • 4/3
answer: 1.2 or 1 1/5 or 6/5
