The Answer for #1 is found as follows:
Perimeter is the sum of all sides so...
8x+2+5x-4+9x+3=?
Group together the x's and the numbers:
8x+5x+9x+2-4+3=?
Answer = 22x+1
The Answer for #2 is found as follows:
Area of a triangle is 1/2 base times height
The bottom of the triangle is 4t, but we know t is 4 inches, so the bottom is 16.
The height is 7 times t which is 4... so the height is 28 inches.
using the formula, it will be 1/2(16)(28). The answer will be 224 inches squared.
The Answer for #2 is found as follows:
Polynomials cannot have squares or fractions. So the 2nd, 3rd, and 4th options are all not polynomials.
