In how many ways can a husband and wife choose 2 different dinners from a menu of 13 dinners?

Fill in the blank(s) with the appropriate word(s).


156

Mathematics

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Use special right triangles to evaluate the expression.cot  - sin 

A. - 
B.
C. - 
D.

Mathematics

Solve the problem.Arches in the shapes of parabolas are often used in construction. Find the equation of a parabolic arc that is 26 feet high at its highest point and 30 feet wide at the base, as illustrated in the figure. Place the origin at the midpoint of the base.

A. y = -x2 + 30
B. y = -x2 + 26
C. y = -  x2 + 26
D. y = x2 + 26

Mathematics

Find the sum.  + 

A.
B.
C.
D.

Mathematics

Solve.The population of an endangered species living in a controlled habitat is given by the equation where P is the population and t is the time in months since the population was moved to the habitat. Graph the equation for t = 0, 6, 12, and 18.

A.

B.

C.

D.

Mathematics