Answer:
15
Step-by-step explanation:
-3x = -5-10
-x=-15
therefore, x=15
Answer:
x^2 - 6x + 8 x - 2
x
0 8 -2
1 3 -1
2 0 0
3 -1 1
4 0 2
5 3 3
The solutions are in red ⇒ x = 2 and x = 5
Answer:
525 mm
Step-by-step explanation:
The edges of A : B = 2.5, thus
The perimeters of A : B = 2.5
Thus the perimeter of B is 2.5 times the perimeter of A
perimeter of B = 2.5 × 210 mm = 525 mm
Answer:
In that year approximately 2114 thousand people visited the park.
Step-by-step explanation:
Since the expression
models the number of visitors in the park, where x represents the number of years after 2007 and 2021 is 14 years after that, then we need to find "y" for that as shown below.
![y(14) = -7.5*(14)^2 + 103*14 + 2142\\y(14) = -7.5*196 + 1442 + 2142\\y(14) = -1470 + 3584\\y(14) = 2114](https://tex.z-dn.net/?f=y%2814%29%20%3D%20-7.5%2A%2814%29%5E2%20%2B%20103%2A14%20%2B%202142%5C%5Cy%2814%29%20%3D%20-7.5%2A196%20%2B%201442%20%2B%202142%5C%5Cy%2814%29%20%3D%20-1470%20%2B%203584%5C%5Cy%2814%29%20%3D%202114)
In that year approximately 2114 thousand people visited the park.