Write 21.012 in expanded form.

Standard Form:

21.012

Expanded forms can be written like a sentence or stacked for readability as they are here.

Expanded Notation Form:

 20  

+1  

+  0.0

+  0.01

+  0.002

Expanded Factors Form:

 2 ×10  

+1 ×1  

+0 ×  0.1

+1 ×  0.01

+2 ×  0.001

Expanded Exponential Form:

2 × 101

+1 × 100

+0 × 10-1

+1 × 10-2

+2 × 10-3

Word Form:

twenty-one and twelve thousandths

Step-by-step explanation:

to find the perimeter of the rectangle this is the expression:

x-9+x-9+3x-4+3x-4=138

if we simplify it:

8x-26=138

remember, 138 is what it all adds up to

the length is 11.5cm

the width is 57.5cm

the area is 661.25cm^2

the answers might not be correct use at own risk

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.