A degree of a monomaniacal is the sum of the exponents of all its variables. So 8+5 would give u 13
Answer:
380.1
Step-by-step explanation:
Area = 22/7 × 11 × 11 =380.3
The answer is 2, just follow the order of operations
AD = AB
AD = 2r+8
AB = 5r-13
we need to find the value of r to find the total length
so 2r+8 = 5r-13
subtract 2r from each side:
8 = 3r -13
add 13 to each side:
21 = 3r
divide both sides by 3
r = 21 / 3 = 7
r=7
now we know r, so replace r with 7 in the equation for AD
AD = 2r+8 = 2(7) +8 = 14 +8 = 22
the answer is D. 22
