This table shows the minutes students spent studying for their science exam and the scores they received, Study time (min)
19
12
34
10
17
42
60
15
9
21
30
50
Exam score
82
78
90
78
85
97
100
85
73
90
91
98
Use a graphing calculator to model the data using a linear function,
What is the correlation coefficient of the data?
-0.74
-0.48
0.93
0.98

the answer to the expression is 83

0.32

step-by-step explanation:

2.24/7

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