Answer:
about 40 kilometers
Step-by-step explanation:
Answer:
PS=5.4
Step-by-step explanation:
The centroid divides each median in the ratio 2:1
If U is the centroid, then

We use ratio to obtain;

Cross multiply;

Expand;

Group similar terms;


x=1
PS=PU+US
PS=3.6+1+0.8
PS=3.6+1+0.8
PS=5.4
Answer:
DNE
Step-by-step explanation:
Given that two particles travel along the space curves

To find the points of intersection:
At points of intersection both coordinates should be equal.
i.e. r1 =r2
Equate corresponding coordinates

I equation gives t =-1
Substitute in II equation to get 
i.e. t cannot be real
Hence no point of intersection
DNE
Answer:
x = 115° , y = 65° , z = 115°
Step-by-step explanation:
The figure is a parallelogram.
Consecutive angles are supplementary ( sum to 180° ) , then
x + 65° = 180 ( subtract 65° from both sides )
x = 115°
Opposite angles are congruent , then
y = 65°
z = x = 115°