Answer:
3
Step-by-step explanation:
Use PENDAS it helps a lot.
15.5/ 15.49 hope i helped!
- Given -5(4x+6)<-18 x+6+4x
- Distributive Property Of Equality -20x - 30 < -18x + 6 + 4x
multiply -5 to 4x and 6, so you've got -20x - 30
- Combine Like Terms -34x - 30 < 6
add all the numbers that has a variable, (-20x) + (-18x) + 4, so you've got -34x
- Addition Property of Equality -34x < 36
add 30 on both sides like this, -34x -30+30 < 6+30
- Division Property of Equality x > -1.1
divide -34 ;like this, -34x/-34 < 36/34
so the answer is x > -1.1
Given is the function for number of adults who visit fair at day 'd' after its opening, a(d) = −0.3d² + 4d + 9.
Given is the function for number of children who visit fair at day 'd' after its opening, c(d) = −0.2d² + 5d + 11.
Any function f(d) to find excess of children more than adults can be written as follows :-
f(d) = c(d) - a(d).
⇒ f(d) = (−0.2d² + 5d + 11) - (−0.3d² + 4d + 9)
⇒ f(d) = -0.2d² + 0.3d² + 5d - 4d + 11 - 9
⇒ f(d) = 0.1d² + d + 2