St lies on the coordinate plane with s located at (3.2). the midpoint of dt is z(3,9) can the location of t be determined? it so, state the location. if not, explain why not

I think your question in correct way is like this:

ST lines on the coordinate plane with S located at (3,2). The midpoint of ST is Z(3,9). Can the location of T be determined? If so, state the location. If not, explain why not.

T(3,16)

Step-by-step explanation:

If two points A(,) and B(,) are given then the coordinate of midpoint of AB is given by M(,).

Similarly coordinates of Z in terms of coordinates of S and T is given by:

Therefore, point T is located at (3,16).

7.9m and 4.3°

step-by-step explanation:

let east be +x and north be +y, x = distance * cos θ, y = distance * sin θ  

for 3.5 south, y = -3.5  

for 8.2, x = 8.2 * cos 30 and y = 8.2 * sin 30  

for 15 west, x = -15  

total x = 8.2 * cos 30 – 15 ≈ -7.9  

total y = -3.5 + 8.2 * sin 30 = 0.6  

magnitude = [(8.2 * cos 30 – 15)^2 + 0.6^2)]^0.5  

the magnitude is approximately 7.9 m  

tan θ = y/x = 0.6/-7.9  

the angle is approximately 4.3˚ north of west

since no one answered yet i will give it a shot, not completely sure tho.

i think it should be y=cos(x+2pi), (third answer, answer c)

good luck.