An archway can be modeled by the quadratic function f(x)=-0.5x2+10 where x is the horizontal distance, in feet, across the ground. How far apart are the bases of the archway? Round your answer to the nearest tenth of a foot.

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answer:

the domain is the set { -2, 0, 2, 3}

discussion:

the domain is the set of x values in the ordered pairs (x,y). taking the x, or first component, of each ordered pair gives   -2, 0, 2, 3.

you,

mrb

the answer is

d.

5.3066 m2

step-by-step explanation:

d.) 48 units

step-by-step explanation: