Abeam rests against a wall, forming a 50 degree with the floor. use the function y=9 sec 0 to find the length of the beam to the nearest tenth of a foot.

a. 14.0 ft
b. 11.7 ft
c. 5.8 ft
d. 6.9 ft

ANSWER

A. 14.0 ft

EXPLANATION

The function that can be used to find the length of the beam is

From the question, we were given that, the beam that rests against the wall makes an angle of 50° with the floor.

This implies that;

We substitute this value into the formula to obtain,

Using a calculator, we have

to the nearest tenth.

The correct answer is A

arithmetic sequence

step-by-step explanation:

given that a sequence has terms as

19, 15, 11,

this is represented on a graph

the pattern indicates that the sequence is an arithmetic sequence with i term

a=19 and common difference d =-4

any general term

thus the sequence is reduced by 4 for each successive term starting from 1 and nth term is

24-5n.

first negative term would start after 5th term

5th term =24-25< 0

from 5th term onwards the sequence would be negative.

step-by-step explanation:

5×5×5+2(8)÷2(2)+3(3)

15+16÷4+9

31÷13

do 31÷13 and u will get ur answer