Find the perimeter and area: 1. square with a side 2.4 m in length find the perimeter and area

2. rectangle with length (x+3) and width 7

3. although a circle does not have sides, it does have a perimeter. what is the term for the perimeter of a circle? ​

1= Perimeter =9.6

Area = 5.76m^2

find the perimeter and area:

1. square with a side 2.4 m in length find the perimeter and area

length [l]=2.4m

area of square=l²=2.4²=5.76m²

perimeter of square=4l=4×2.4=9.6m

2. rectangle with length (x+3) and width 7

length [l]=x+3

Breadth [b]=7

perimeter of rectangle =2{l+b}=2(x+3+7)=2x+20

area of rectangle=l×b=(x+3)×7=7x+21

3. although a circle does not have sides, it does have a perimeter. what is the term for the perimeter of a circle.

the term for the perimeter of a circle=2πr (when radius is given ) and πd (when diameter Is given)

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

0.6, 3/5, and 6% are the 3 same portion.

but, when they're all changed to a decimal they would equal to 0.6.

hope this , good luck!