Answer: 66 is the circumference
Step-by-step explanation: Formula of circumference: 2 times pi times R
R is radius and Diameter is 2 times of R. Formula of circumference can also be: pi times R. 22/7 times 21 is 66.
Answer:
3x^2+4x=1
x(3x+4)=1
So, there is two x answers
1)x=1
2)3x+4=1 => x= -1
Step-by-step explanation: First ^ the equation... I think i helped you. If i helped you please check my answer brainlest
Answer:
5
Step-by-step explanation:
(125) ^ (1/3)
What number times itself times itself =125
a*a*a =125
5*5*5 = 125
x = number of packages he bought
y = number of popsicles in each package
Here are the two equations:
xy = 54
x = 3 + y
Using the substitution method, you can solve them to find x and y.
(3 + y)y = 54,
3y + y^2 = 54
y^2 + 3y - 54 = 0
Solve the quadriatic equation:
(y +9)(y - 6) = 0
y = -9, 6.
Plug y into: xy = 54
x(-9) = 54, x = -6.
x(6) = 54, x = 9.
So he bought 9 packages of popsicles, bc you can't bye -6 packages.
