Answer: 20/7
Step-by-step explanation: It’s still 20/7 because you can’t simply the 7.
Answer:
Yes
Step-by-step explanation:
In order to make a triangle with non-zero area, the sum of the shorter two sides must be greater than the longest side.
Here, 4 + 4 > 7, so the lengths can form a triangle.
Answer:
Parallel, since .
Step-by-step explanation:
The relation between both vectors is determined by the use of the dot product, whose expression is:
Where:
if vectors are parallel to each other and if vectors are orthogonal. Then, norms and dot product are calculated hereafter:
The two vectors are parallel to each other, which is also supported by the fact that one vector is multiply of the other one. That is,
Step-by-step explanation:
2w+3(2w)=30
8w=30
w=3.75
l=11.25