Answer: according to spark notes: There can be 0, 1, or 2 solutions to a quadratic equation, depending on whether the expression inside the square root sign, (b2 - 4ac), is positive, negative, or zero. This expression has a special name: the discriminant.
In this case it is 0, not 2, which was my first and wrong answer
Answer:
2:3:5 = 480:720:1200
(a) 480+720+1200
(b) 480
(c) 720/(a)
Step-by-step explanation:
Answer:
70°
Step-by-step explanation:
The tangent- chord angle is one half the measure of the intercepted arc.
intercepted arc = 360° - 220° = 140°, thus
inscribed angle = 0.5 × 140° = 70°
Answer:

Step-by-step explanation:
<u>Using Pythagorean Theorem first to find EC</u>

<u>Given that:</u>
AE = EC
AE = 12 cm
Now,
AB = AE + EB
AB = 12 + 5
AB = 17 cm
<u>ABCD is a trapezoid / trapezium</u>
So,
Area of Trapezium = 
Where AB = 17 , DC = 8 and EC = 12
Area of Trapezium = 
Area of Trapezium = (25)(6)
Area of Trapezium = 150 cm²