Answer:
15
Step-by-step explanation:
Substitute the values of the lengths and base in the formula for the perimeter
Perimeter = 2 (L) + b
121 = 2 (4x - 7) + x
121 = 8x - 14 + x
121 = 9x -14
121 + 14 = 9x
135 = 9x
x = 15
Step-by-step explanation:
Option A and B are the correct answer because it equal to 688.5 and 688.05
Answer:
s = 32
Step-by-step explanation:
–5(s – 30) = –10
Divide each side by -5
–5/ -5(s – 30) = –10/-5
s - 30 = 2
Add 30 to each side
s-30+30 = 2+30
s = 32
Answer:
B. -6 does not belong to the domain but belongs to the range of f(x).
Step-by-step explanation:
We have the function, .
So, the domain of the function is obtained when i.e.
That is, the domain is {x | x≥ 7}.
Now as we have,
→ → → → .
That is,
Thus, the range of the function f(x) is {y | y≤ 1}.
Thus, we can see that,
-6 does not belong to the domain but belongs to the range of f(x).