Solve the problem.A bridge is built in the shape of a parabolic arch. The bridge arch has a span of 198 feet and a maximum height of 30 feet. Find the height of the arch at 10 feet from its center.
A. 11 ft
B. 0.1 ft
C. 29.7 ft
D. 1.2 ft
Answer: C
Mathematics
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The nth term of a sequence is given. Find the first 4 terms.an = (-1)n - 1 
A. 4, 1, 
, 
B. 4, - 
, 
, - 1
C. - 4, 
, 
, 
D. - 4, 
, - 
, 1
Mathematics
Use the distributive property to write an equivalent expression.
A. -4k + 
B. 4k + 
C. 2k + 
D. 4k + 
Mathematics
Translate the sentence to an inequality.A number is less than or equal to -2.
A. x ? -2 B. x ? -2 C. x < -2 D. x > -2
Mathematics
Find the opposite of the number.9
A. -9
B. 
C. 9
D. - 
Mathematics