Step 1
we know that
The perimeter of a square is equal to
P=4*b
where
b is the length side of a square
<u>Find the perimeter of the square picture</u>
b=4 in
P=4*4=16 in
Step 2
<u>Find the maximum radius of the circular frame</u>
we know that
the perimeter of a square frame is equal to the circumference of the circular frame
the circumference is equal to
r=2.5 in
therefore
<u>the answer is</u>
the maximum radius of the circular frame is 2.5 in
1. Multiply x and 3y by x-2
x^2-2x (i.e. x*x=x^2, -2*x=-2x)
3yx-6y (i.e. 3y*x=3yx, 3y*2=6y)
2. Multiply x+y by -4
x*-4= -4x
y*-4=-4y
3. Multiply 2x+3y by -1
2x*-1=-2x
3y*-1=-3y
4. Combine like terms
x^2 3yx -2x -6y
-2x -3y
-4x -4y
-------------------------------------------
x^2 +3yx -8x -13y
Hope this helps!
3/2(x - 10 ) = 1/2 x + 5
expand by using distributive property
3/2 x - 15 = 1/2 x + 5
subtract (1/2 x ) on both sides
x - 15 = 5
add 15 on both sides
x = 20
answer
C. x = 20