Answer:
a. Center: (-15, 9), Radius: 5
Step-by-step explanation:
Equation of a circle:
The equation of a circle of center 
and radius r is given by:
In this question, we have that:
Comparing both equations:
And
The center is 
.
For the radius:
The correct answer is given by option a.
17 is the constant term because it does not have any variables.
Answer:
30×pi ft
Step-by-step explanation:
ST is the diameter.
the formula for the circumference of a circle is
C = 2×pi×r
r = radius = diameter / 2
so,
C = 2×pi×30/2 = pi×30
therefore, the first answer option is correct.
Answer:
the answer is 11 quarters and 20 pennies
Step-by-step explanation: because it said 9 more pennies than quarters so 11 x .25 = $1.75 + $0.20 = $2.95
PLZ MARK BRAINLIEST
The length of it is 4 because the rectangle
