20. (2) 14
A perfect square trinomial will factor into two expressions that are the same, for example: x^2 + 6x + 9 = (x + 3)(x + 3). Since this problem has a C value of 49, it will factor into (x + 7)(x + 7). 7 doubled is 14, therefore one possible value of B is 7.
21. (4) 2, -12
x^2 + 10x + 25 = 24 + 25
(x + 5)^2 = 49
x + 5 = +/- 7
x = 2, -12
22. (3) 3 + sqrt(17)
x^2 - 6x = 8
Complete the Square
x^2 - 6x + 9 = 8 + 9
(x - 3)^2 = 17
x - 3 = +/- sqrt(17)
x = 3 + sqrt(17), 3 - sqrt(17)
23. (1) 1, -5
x^2 + 4x - 5 = 0
x^2 + 4x = 5
x^2 + 4x + 4 = 5 + 4
(x + 2)^2 = 9
x + 2 = +/- 3
x = 1, -5
Hope this helps!
Divide each side by 4/9 // Multiply the reciprocal, which would be 9/4
Which would leave you with
Answer:Considering they both decide to share the money according to the ratio of money invested, then Arjun's share =₹36,000
Step-by-step explanation:
Total profit made = ₹60,000
Ratio of money invested by Mahesh and Arjun
Total ratio= 2+3= 5
Arjun share =3/5 x60,000= 180,000/5
= ₹36,000
Answer:
6/1 x 2/3
Step-by-step explanation:
Answer:
If you are solving for v, v= 27 cause 27+9=36 then you subtract 16 from 36 and it equals 20.
Step-by-step explanation: