A vertical line is perpendicular to the x-axis because they would intersect to form a 90 degree angle.
You need multiply 35cm by 5 in order to get the length of string b which will be 175cm and than you need to add 175cm to 35cm to create one decorative bottle which gives you 210cm. After that you need to multiply 210cm by 17 which gives you 3570cm
Answer:
I think option B i.e. when its angles are right angles.
Answer:
Part A: 15 and 100 are the coefficients!
Part B: Two terms in the expression!
Step-by-step explanation: