Draw a model of the expression 4x+3

Please answer this ASAP ! :)

x + x + x + x + 1 + 1 + 1

Step-by-step explanation:

4x + 3 means 4 of something we don't know and 3 more (of something different)

cant really draw on here

but i would put 4 rectangles and 3 squares, or something like that

true statements:

a) x + y = y + x   ⇒ commutative property of addition

b) (x * y) * z = x * (y * z) ⇒ associative property of multiplication

d) (x + y) + z = x + (y + z) ⇒ associative property of addition

false statements:

c) x - y = y - x   should be: x - y = - y + x

e) (x - y) - z = x - (y - z) should be: (x - y) - z = x - (y + z)

step-by-step explanation:

for any of you who need the translation here it is

step-by-step explanation:

find the angular size of the equatorial radius of the earth, if the horizontal parallax of the sun