Answer:
Numeric expressions apply operations to numbers. For example, 2(3 + 8) is a numeric expression. Algebraic expressions include at least one variable and at least one operation (addition, subtraction, multiplication, division). For example, 2(x + 8y) is an algebraic expression.
Step-by-step explanation:
Its 39.58.... you may have missed one
no because if you make each fraction equal , the first would be 3 3/6 feet of molding and the other would be 4 4/6 feet and if you add those together you would get 8 1/6 which is less than 8 3/5
Answer:
The scale factor used to go from P to Q is 1/4
Step-by-step explanation:
see the attached figure to better understand the problem
we know that
If two figures are similar, then the ratio of its areas is equal to the scale factor squared
Let
z ----> the scale factor
x -----> area of polygon Q
y -----> area of polygon P

we have

Find the area of polygon Q
Divide the the area of polygon Q in two triangles and three squares
The area of the polygon Q is equal to the area of two triangles plus the area of three squares
see the attached figure N 2
Find the area of triangle 1

Find the area of three squares (A2,A3 and A4)

Find the area of triangle 5

The area of polygon Q is

Find the scale factor

we have

substitute and solve for z


square root both sides

therefore
The scale factor used to go from P to Q is 1/4
Answer:
4x^2 + 4x - 8 = 4*(x^2 + x - 2)
(x - 1) * (x - a) = x^2 + x - 2 --> a = -2