Answer:
25.13
Step-by-step explanation:
C=2πr=2·π·4≈25.13274cm
Answer:
Step-by-step explanation:
(x+3)² -5 =0 , use the formula (a+b) ² = a²+b²+2ab
x²+9 +6x -5 =0 , combine like terms
x²+6x +4 =0, use the quadratic formula x = (-b±√b²-4ac)/2a
x= (-6 ±√6²-4*1*4)/2*1
x= (-6 ± √36-16) /2
x= (-6±√20)/2
x=(-6 +2√5)/2 and x=( -6-2√5) /2, factor 2 in the numerator and simplify
x= -3 +√5 and x= -3 -√5
Answer:
24 hr × 30% = 24 hr × 0.30 = 7.2 hr (or 7 hr 12 min)
Answer:
To find the area of the hexagon,we will first find the area of each equilateral triangle then multiply it by 6.
Answer is 132
because 9 goes into 11 twice and 9 goes into 28 3 times
