Answer:
Radius: 2.3 in
Circumference: 14.1 cm
Step-by-step explanation:
Radius is half of the diameter.
Diameter=4.5
Radius=4.5/2=2.25, which rounds to 2.3
Circumference=
d
=(3.14)(4.5)
=14.13
=rounds to 14.1
73/4 + 10√3 I think I’m not sure.
X = 2a - b²
x - 2a = b²
√x-2a = b
Just to clarify, all of x-2a is under the square root.
Answer:
(2, - 1 )
Step-by-step explanation:
3x - y = 7 → (1)
2x + 3y -= 1 → (2)
multiplying ( 1) by 3 and adding to (2) will eliminate y
9x - 3y = 21 → (30
add (2) and (3) to eliminate y
11x = 22 (divide both sides by 2 )
x = 2
substitute x = 2 into either of the 2 equations and solve for y
substituting into (2)
2(2) + 3y = 1
4 + 3y = 1 (subtract 4 from both sides )
3y = - 3 ( divide both sides by 3 )
y = - 1
solution = (2, - 1 )
