B.3(n-5)=21
n-5=7
n=12
C.n=2
D.x=0
Ex=0
Answer:
A
Step-by-step explanation:
(6,4)
3x-1y=14
-y= 3x-14
y=-2x+16
sub in first equation
3x-14 =-2x+16
3x+2x= 16 +14
5x = 30
x = 6
plug in x
y=-2x+16
y = -2(6)+16
y = 4
(6,4)
Answer:
(x+6)(x-1)
Step-by-step explanation:
factor using the x-box method
Answer:
-11/24
Step-by-step explanation:
i used a fraction calculator, but basically you’ll want to find the least common denominator (lcd) for both of the fractions and then work with them like that. the lcd is 24, so multiply 5/12 by 2/2 and 7/8 by 3/3 and you’ll have 10/24 minus 21/24. then all you gotta do now, is subtract the numerator and you’ll have -11/24
Area of the circle outside
= πr2
= π(5)2
=25 π
Area of the bigger circle inside
= π x(3)2
= 9 π
Area of the smaller circle inside
= π x (2)2
= 4 π
Area of shaded region
= 25π - 9π - 4π
= 12π square unit