A parabolic bridge is 70 m wide. At a horizontal distance of 10 m in from the base of the bridge, the height of the bridge is 38 m. If the height at a point on the bridge is 54 m, at what
horizontal distance in from the base does this occur?
13. The Diver Time company makes digital watches for scuba divers. The company models its
price with the demand function p(x) = x + 31 and its costs with the function C(x) = 4x2 + 8x + 7.

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

read more on -

step-by-step explanation:

if i knew id you bro,, my bad