Answer:
Use quadratic formula
Step-by-step explanation:
(x - 17) (7x + 5)
7x^2 + 5x - 119x - 85
7x^2 - 114x - 85 = 0
The value of x can then be worked out using the quadratic formula where you substitute all the numbers in your calculator.
Answer:
x² + (y-74)² = 4900
Step-by-step explanation:
Circle equation: (x-h)² + (y-k)² = r²
"h" refers to horizontal shifts while "k" refers to vertical shifts. If the center of the wheel is directly above the origin of the rectangular plane and the entire wheel is 4 ft. from the ground then:
- h = 0
- k = 74 (the radius + 4 ft.)
- r = 70
So plugging those into the equation of circles, we get the answer above.