Answer:
2n+7
Step-by-step explanation:
7 more than twice n would be:
2n+7
this is because twice n would mean that you'd multiply n by 2, and by 7 more than they mean you would add 7 to that.
Answer: 0
Step-by-step explanation:
We know that if the number of real solutions the quadratic equation depends on the discriminant:-
- If d = 0, then equation will have exactly one real number solution .
- If d > 0 then equation will have exactly two real number solutions.
- If d < 0 then the quadratic equation will have no real solutions. There will be two complex number solutions.
Therefore, if a quadratic equation has exactly one real number solution.
Then, the value of its discriminant= 0.
Plug in what we know:
Simplify:
Divide 6.28 to both sides:
So the radius of the ferris wheel is 14.25 feet.
To solve, set an equation:
472=0.8x
Divide both sides by 0.8
472/0.8=0.8x/0.8
x=590
Answer: The original price was $590
