Solve the problem.A hall 130 feet in length was designed as a whispering gallery. If the ceiling is 25 feet high at the center, how far from the center are the foci located?
Fill in the blank(s) with the appropriate word(s).
60 ft
Mathematics
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Find the values of x for which the geometric series converges.
A. |x| < 5
B. |x| < 1
C. |x| < 
D. |x| < 10
Mathematics
a and b represent the two legs of a right triangle, while c represents the hypotenuse. Find the length of the unknown side.a = 12 km, c = 20 km
A. b = 19 km B. b = 20 km C. b = 16 km D. b = 14 km
Mathematics
Simplify the expression. Assume that all variables are positive when they appear.
A. 
B. 
C. 7
D. 43
Mathematics
Translate using numbers and symbols.The product of six and a number
A. x - 6
B. 6x
C. x + 6
D. 
Mathematics