Answer:
1) -95.
2) 15.
3) The conference center is on floor 5.
Step-by-step explanation:
1) Evaluating gives 
2) Substituting gives 
3) After going 4 floors down, we are on level -4. After going 9 floors up to the desired room, we are on level -4+9=5. So the conference center is on floor 5.
Answer:
see explanation
Step-by-step explanation:
A
given
=
( cross- multiply )
5.7f = 34.2 ( divide both sides by 5.7 )
f = 6
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B
given
=
( cross- multiply )
3.6g = 92.34 ( divide both sides by 3.6 )
g = 25.65
Answer:
The correct answer is 21.5
Step-by-step explanation:
Step-by-step explanation:
Let's get our relevant base equations listed out:
d = 2r
area = pi*r²
c = πd
Thus, d=2*5m = 10m, c=π*10m=10π m, and area = 25m²*π
Feel free to ask further questions!