Dy/dx=25, 35, 45, 55
d2y/dx2=10,10,10 (this constant just proves that it is a quadratic relation)
Now we can set up a system of equations for ax^2+bx+c
16a+4b+c=80, 9a+3b+c=45, 4a+2b+c=20 getting differences
7a+b=35, 5a+b=25 and again
2a=10, a=5, making 7a+b=35 become:
7(5)+b-35, b=0, making 4a+2b+c=20 become:
4(5)+2(0)+c=20, c=0 so
y=5x^2
So the constant of variation for this quadratic is 5.
Answer:
37.854
Step-by-step explanation:
59.73-21.876=37.854
Answer: 
Step-by-step explanation:
Since, By the given diagram,
In quadrilateral ABCD, all angles are right angles ⇒ DC = AB = 15 cm and CB = DA
Also, In triangle DFA,
⇒ 
⇒ 
⇒ 
Now, In triangle, DEC,
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
⇒ 
Use the distributive property to express the sum of the 2 whole numbers 15 and 30 with common factors as a multiple of two whole numbers with a sum of no common factor the solution would be (15 plus 30) = 15(1+2)
D.
If Tony and Michael ate 26 you take that away from 60 which equals 34.
26-60=34
