What is the value of cosθ given that (−2, 9) is a point on the terminal side of θ ? 985√85 −985√85 285√85 −285√85

Step-by-step explanation:

Let's call r the distance form the origin to the point (-2,9), this distance is related with with the expression

So, we have to find r with the formula of distance and the given point:

Now, replacing on the first relation, we have

Therefore, the answer is

PD: choices were written wrong.

an altitude of 15,000 feet

step-by-step explanation:

percentage - 25%

probability - 0.25

we know,

total amount of students in class = 20

total boys = 10

total girls = 10

no of girls who wear glasses = 10/2 = 5

probability of choosing a girl with glasses is =

number of girls wearing glasses/total number of students in the class = 5/20

thus, percentage of selecting a girl wearing glasses will be

= 5/20 × 100

= 5 × 5

25%

therefore,

probability will be 0.25

happy to

pls mark as brainliest