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:
b2=2A-b1
Step-by-step explanation:
picture is attached of what I did
hope it helps
The chords ar of equallength so
3x - 15 = 2x - 4
x = -4 + 15 = 11
So the chord JK = 3(11) - 15
= 18 answer
Answer:
4/2
Step-by-step explanation:
Hi!
-32 = 4b
4b = -32
b = -32 : 4
<u>b </u><u>=</u><u> </u><u>-</u><u>8</u>
