The following table shows the number, in millions, of women employed outside the home in the given year. Number in millions Year 1942 1943 16.11 18.70 1944 19.17 1945 19.03 1946 16.78 (a) Use regression to find a quadratic model for the data. (Let t be the number of years since 1942. Round the regression parameters to three decimal places.) N = (b) Express using functional notation the number of women working outside the home in 1948, and then estimate that value. (Round your answer to two decimal places.) million
Angles in Circles
Angles within a circle are feasible to create with the help of different properties of the circle such as radii, tangents, and chords. The radius is the distance from the center of the circle to the circumference of the circle. A tangent is a line made perpendicular to the radius through its endpoint placed on the circle as well as the line drawn at right angles to a tangent across the point of contact when the circle passes through the center of the circle. The chord is a line segment with its endpoints on the circle. A secant line or secant is the infinite extension of the chord.
Arcs in Circles
A circular arc is the arc of a circle formed by two distinct points. It is a section or segment of the circumference of a circle. A straight line passing through the center connecting the two distinct ends of the arc is termed a semi-circular arc.
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