Let's say the original radius was "r", so the circumference is 2πr and the area is πr².
Now when you double the radius, the you get a new circle with radius 2r, circumference 2π(2r) = 4πr, and area π(2r)² = 4πr².
Answer:
y = - x + 1
Step-by-step explanation:
The equation of a line in slope- intercept form is
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m = (y₂ - y₁ ) / (x₂ - x₁ )
with (x₁, y₁ ) = (- 1, 2) and (x₂, y₂ ) = (4, - 3)
m = 
= 
= -1, hence
y = - x + c ← is the partial equation
To find c substitute either of the 2 points into the partial equation
Using (- 1, 2), then
2 = 1 + c ⇒ c = 2 - 1 = 1
y = - x + 1 ← equation in slope- intercept form
Answer:
x = - 0.89
Step-by-step explanation:
x - 8.2 = - 9.09
x = - 9.09 + 8.2
x = - 0.89
The vertex is the center point of the line or the axis of symmetry
So your answer should be (-2, -5)
Answer:
Explanation is below.
Step-by-step explanation:
Commutative property:
The Commutative property states that order does not matter. Multiplication and addition are commutative.
For example 2+5=5+2 .
Associative property:
The associative property states that you can add or multiply regardless of how the numbers are grouped.
For example 2x(7x5)=(2x7)x5
Distributive property:
The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.
For example 2(x+y)=2x+2y
Zero property of addition:
Zero is the additive identity. Adding zero to a number will not change its value. a + 0 = a.
For example 2z + 0 = 2z
Identity property of multiplication:
Property is that multiplying any number by 1 allows the number to keep its identity.
For example 14 x 1 = 14
Additive inverse:
The additive inverse of a number a is the number that, when added to a, yields zero. This number is also known as the opposite, sign change, and negation.
For example 13 + -13 = 0
