Identify the x-intercept of the function:

a.

b.

c.

d.


d.

Mathematics

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The planet Mercury travels in an elliptical orbit with eccentricity 0.703. Its minimum distance from the Sun is km. If the perihelion distance from a planet to the Sun is a(1 - e) and the aphelion distance is a(1 + e), find the maximum distance (in km) from Mercury to the Sun.

Mathematics

Use the fundamental identities to simplify the expression.cos ? - cos ? sin2?

A. sin ? B. tan2? C. cos3? D. sec2?

Mathematics

Solve the problem.A lot is in the shape of a right triangle. The shorter leg measures 90 m. The hypotenuse is 30 m longer than the length of the longer leg. How long is the longer leg?

A. 120 m B. 90 m C. 180 m D. 150 m

Mathematics

Find the solution set of the system. ? ?

A. ?


B. ?


C. ?


D. ?


Mathematics