Bridge Problem: Figure 12-6c is a photograph of Bixby Bridge in Big Sur, California. A similar
bridge under construction is shown in
Figure 12-6d. The span of the bridge is to be
1000 ft, and it is to rise 250 ft at the vertex of
the parabola. The roadway is horizontal and
will pass 20 ft above the vertex. Vertical
columns extend between the parabola and the
roadway, spaced every 50 ft horizontally.

b. x- 48 =120

step-by-step explanation:

answer: i don't understand. what are the options

step-by-step explanation:

the answer is c hope it

step-by-step explanation:

(a) common ratio in the given sequence is, 3

(b) push ups will do kendall do on the 20th week

step-by-step explanation:

geometric sequence is a sequence of numbers that follows a pattern were the next term is found by multiplying by a constant called the common ratio(r)

(a)

given the sequence: 6 , 18 , 54 , 162 ,

this sequence is geometric sequence where each term is 3 times the previous term.

therefore,

common ratio(r) = 3.

(b)

a formula for nth term of geometric sequence is given by;

,   where r is the common ratio between the successive terms and is the first term,

to find how many push ups will kendall do on the 20th week.

here. n = 20th term.

in the given sequence first term

then;

simplify:

therefore, push ups will do kendall do on the 20th week