Around which line would the following cross-section need to be revolved to create a sphere? circle on a coordinate plane with center at 1 on the y-axis and a radius of 1

x–axis

y=x

x = 1

y = 1

rotating around  y = 1 will make the sphere.

Step-by-step explanation:

$9.41

step-by-step explanation:

you estimate that the angle of elevation to the top of the 86th floor (the observatory) is 82 .the total height of the building is another 123 meters above the 86th floor.

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