The correct answer is 18 . if you follow pemdas it really helps.
The radius of circle C is 2π
Answer: C. $16.80
Step-by-step explanation:
Answer: 7 units apart
Step-by-step explanation: To get the answer, you have to subtract both of the x axis from each other, You will not have to subtract the y axis because they are already the same. When you subtract the x axis, you will get the answer 7.
Answer: 12 and -4
Step-by-step explanation:
Assume the larger number is x and the smaller one is y.
In that case the relevant simultaneous equations are:
x + y = 8
2x + 4y = 8
Use substitution to find relative value of y:
x + y = 8
y = 8 - x
Use to solve equation:
2x + 4y = 8
2x + 4(8 - x) = 8
2x + 32 - 4x = 8
2x - 4x= 8 - 32
-2x = -24
x = -24 / -2
x = 12
y = 8 - x
= 8 - 12
= -4
