All close under addition therefore all are right
Answer:
400 megabytes of data used will make the cost from either company equal.
Step-by-step explanation:
Given that:
Per month charges of Company A = $80
Charges of 100 MB = $5 = 
Let,
x be the number of MBs consumed.
y be the total charges.
y = 0.05x+80
Per month charges of Company B = $60
Charges of 100 MB = $10 = $0.1 per MB
y = 0.1x+60
For equal charges;
0.05x+80 = 0.1x + 60
80-60 = 0.1x-0.05x
20 = 0.05x

Hence,
400 megabytes of data used will make the cost from either company equal.
Answer: 61.12 ft squared
Explanation: The formula for area of a circle is Pi(radius squared), the line that is eight ft is the diameter of the circle. half of it would be the radius. plug in data as usual but make sure to divide your answer by 2 because you don’t have a complete circle. You only have half. For your triangle the formula is 1/2 base • height. your height would be the 8ft line from the half circle and the base would be the bottom line of the triangle. Don’t forget to divide the base of the triangle by 2. Plug in your data. Then add your two amounts to get your answer.
Answer:
x^2+x+c
Step-by-step explanation:
Answer:
Area of the shaded part is 3.14 square unit.
Step-by-step explanation:
Area of the shaded part = Area of large semicircle - (Area of two small semi circles)
Area of large semicircle with center O = 
= 
= 2π
Area of semicircle with center O' = 
= 
Area of semicircle with center O" = 
Now substitute these values in the formula,
Area of shaded part =
=
= 3.14 square unit
Area of the shaded part is 3.14 square unit.