Answer:
y = 45 + 5(x - 5)
where y is the total cost of the ad, and x is the total number of lines in the ad
Step-by-step explanation:
Let x = number of lines in the ad
Let y = total cost
If the cost of the ad is $45 for the first 5 lines and $5 for each additional line then the expression for the total cost of the ad is:
y = 45 + 5(x - 5)
Answer:
BM = 30 cm, DL = 42 cm
Step-by-step explanation:
The area of the parallelogram = 1470 cm², AB = 35 cm, AD = 49 cm, DL and BM are the heights on sides AB and AD.
area of the parallelogram = base × height = AD × height of AD = AD × BM
⇒ 1470 cm² = 49 cm × BM
BM = 1470 cm² / 49 cm = 30 cm
BM = 30 cm
Also:
area of the parallelogram = base × height = AB × height of AB = AB × DL
⇒ 1470 cm² = 35 cm × DL
DL = 1470 cm² / 35 cm = 42 cm
DL = 42 cm
Answer:

Step-by-step explanation:
we have
----> equation A
----> equation B
Multiply the equation B by 2 both sides
------> equation C
Adds equation A and equation C

Find the value of y



the solution is the point 
If it’s a half circle, the central angle should be 180 degrees.