Answer:
Step-by-step explanation: answer is B
Answer:
Step-by-step explanation:
Givens
C = 12 * pi
C = 2*pi * r
Solution
2*pi * r = 12*pi Divide both sides by 2pi
2*pi * r/ 2*pi = 12*pi/2pi
r = 6
Answer: the diameter = 2 * r
the diameter = 12
Not enough information
Explanation: in order for them to be congruent it must have at least two equal sides or 2 equal angles
(x-1)² = 50
x-1 = <span>±</span>√50
x-1 = -5√2 or x-1 = 5√2
x = 1-5√2 x = 1+5√2
Mr. Reed DATA:
rate = 40 mph ; time = x 4.5 hrs ; distance = 40x miles
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Mrs. Reed DATA:
rate = 60 mph ; time = x hrs ; distance = 60x - 210 miles
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Equation:
40x = 60x -210
-20x = -210
x = 10.5 hrs
x-3.5 = 7 hrs (Mr. Reed's time)
