NEED HELP! I don't know how to do these questions..(I DON'T WANT ANY UNKNOWN LINKS OR SCAMS! If you ignore this and proceed to do so, I WILL REPORT YOU!!) 1. Represent 3+2 using a tape diagram.

2. Represent x+2 using a tape diagram.

3. Draw a rectangular array for 3(3 + 2).

4. Draw an array for 3(x + 2).

Draw a tape diagram to represent each expression.
a. (x + y) + (x + y) + (x + y)

b. (x + x+ x) + (y + y + y)

c. 3x+ 3y

d. 3( x + y )

Find an equivalent expression by modeling with a rectangular array and applying the distributive property to the expression 5(8x + 3).

Exercise 2:
For parts (a) and (b), draw an array for each expression and apply the distributive property to expand each expression. Substitute the given numerical values to demonstrate equivalency.
a. 2(x + 1), x = 5

b. 10(2c + 5), c = 1

y=mx+b

step-by-step explanation:

m slope, b y-intercept

the value of v.w= -12.

step-by-step explanation:

we are given three vector r,v and w as:

r = < 5, -5, -2> ; v = < 2, -8, -8> ; w = < -2, 6, -5>

we know that r,v and w could also be represented as:

r=5i-5j-2k

v=2i-8j-8k

and w= -2i+6j-5k

where i,j and k are the unit vectors of x,y and z-axis respectively.

also we know that it has the following property:

i.i=1 ; j.j=1; k.k=1

and i.=j.i=i.k=k.i=j.k=k.j=0

i.e. when we multiply two vectors or we find it's dot product we need to only multiply the components of x coordinates with each other; y with each other and z with each other.

hence, v.w= (2i-8j- -2i+6j-5k)

                  = 2×(-2)+(-8)×(6)+(-8)×(-5)

                  = -4-48+40

                  = -12

hence, v.w= -12

y=1/4x-4

step-by-step explanation: