4) 121 degrees
because if x is 121 degrees then angle BCA will equal 59 degrees (the two angles must equal 180) so using the sum of a triangle's angles, then angle BAC will have to equal 59, making the triangle an isoceles, which will make AB to be congruent to BC.
Answer:
38 feet
Step-by-step explanation:
P(x) = ℓ(x) + ℓ(x) + w(x) + w(x)
= x + x + (4x - 1) + (4x - 1)
= (x + x + 4x + 4x) + (-1 -1)
= 10x - 2
P(4) = 10(4) -2 = 38
The perimeter is 38 feet when the length is 4 feet long, so Cho will need to
cover 38 feet with garden stones.
9 + 1.34 + 1 2 (3.50 +1.74)
Step 1: add what is inside the parenthesis
9 + 1.34 + 1 2 (5.24)
Step 2: multiply what is inside the parenthesis by 12.
9 + 1.34 + 62.88
Step 3: Add all the numbers
73.22
answer
9 + 1.34 + 1 2 (3.50 +1.74) = 73.22