1) - 4e
2) 3a + 2b
3) - 2c + 6e
4) 5a^2 + 3a + b + c
Hope I could help!
Step One
Develop a formula for the perimeter.
Argument
What you see is a semicircle going upwards and another one going downwards. Two semicircles =1 circle.
The "perimeter" [Circumfrence] of a whole circle = 2*pi*r
We are told that whatever you call this the perimeter is 8pi + 16
Step Two
Set up the equation
8pi + 16 = 2*pi*r + 4r Including the line connecting these two.
Step Three
Take out the common factors on the left and right.
8(pi + 2) = 2r(pi + 2) Divide both sides by pi + 2
8 = 2r Divide by 2
4 = r
Sorry. I didn't know the meaning of perimeter. Mathmate is perfectly correct.
Answer
23/51
Step-by-step explanation:
The probability of the next customer paying with a debit or credit card is =23/51
Answer:
A
Step-by-step explanation:
perpendicular lines are the negative reciprocals of each other, and a pair of these lines intersects at 90 degrees.
Answer:
Rotation, Reflection and Translation.