Geometry - need - will mark brainliest
question 1
what is the opposite of cosine called, and what is its triangle ratio?
question 2
find the height of the tower. (picture of the tower below.)
question 3
find the angle to the nearest degree. (picture of the triangle below.)

see below

Step-by-step explanation:

1. opposite of cosine  

Cosine = opposite/hypotenuse

There is a reciprocal of cosine called secant  = hypotenuse / opposite

2.    We want to find the height of the tower, y

tan C = y/ x

tan 60 = y/15

Multiply each side by 15

15 tan 60 =y/15 *15

15 tan 60 =y

25.98076211 = y

The height is 25.98076211 m or approximately 26 m

3.  The angle to the nearest degree

tan ? = opposite/ adjacent

tan ? = 27/38

Taking the inverse

tan^-1 (tan ?) = tan ^-1 (27/38)

? =35.39479584

To the nearest degree = 35

secant

≈ 26 m

≈ 35°

Step-by-step explanation:

QUESTION 1

Opposite of cosine ⇒ secant  = hypotenuse / opposite leg

QUESTION 2

Height of the tower

tan 60 = h/ 15

h= 15 tan 60 ≈ 26 m

QUESTION 2

tan x = 27/38

x ≈ 35°

let's cover over the formula of the vertex:

y = a(x – h)^2 + k

in this formula, (h,k) are the vertex, always remember that the positive or negative value of the vertex is based on the sign it has.

for example, if the vertex is -3,-6 then both the x and y value would have the positive sign attached to it and if it were a positive x and y value, then a negative sign would be attached to it.

with that being said, for our problem the x value is a positive one so we are looking for a number with a negative sign next to it, in this case the first and second choice.

however, for the first answer choice it isn't quite part of the formula so we know that the answer choice correctly displays the x value.

to confirm, we can see if the -1 fits correctly with the second answer choice, and as mentioned above a negative number will have a positive sign attached to it. so, for our problem we can see that -1 has been changed to +1, so we can confirm that the second answer choice is correct.

hence, our final answer is y=(x - 1)^2 + 1