Exercise you
1. Listed below
are the ages of students who
attended a school disco.
15
14.
13:1
14.
121/
12
14.
13
14
13-1
14
13.
12
13
14.1
12
13.
12
12
12
14
14.
14 1
14 1
13
15
12
15
12
14
(i) Sort the data into a frequency table.
Include a tally row in your table.
(m) How many students attended the disco?

answer:   b

step-by-step explanation:

x2 = 16

x can not be a negative number because 16 is positive

the only answer would be positive 8  

answer:   28.56 feet (approx)

step-by-step explanation:

since, triangle abc has measure of angle c equal to 55 degrees, measure of angle abc equal to 90 degrees, and length of bc equal to 20 feet.

we have to find out the measurement of segment ab.

therefore, tan 55° =

but bc = 20 feet.

⇒ tan 55 ° =  

⇒ ab = 20 × tan 55 °

⇒ ab = 20 × 1.42814800674

⇒ ab = 28.5629601348   ≈ 28.56 feet