Step-by-step explanation:
Answer:
Given :-
notha records the lowest temperature each day for one week
-7.3°f, -11.2°f, 2.2°f, 0°f, -1.7°f, 3.3°f, 0°f
To Find :-
Solution :-
Mean = -7.3 +(-11.2) + 2.2 + 0 + (-1.7) + 3.3 + 0/7
Mean = -7.3 - 11.2 + 2.2 - 1.7 + 3.3/7
Mean = -20.2 + 5.5/7
Mean = -14.7/7
Mean = -2.1⁰ F
-2.1
-7.3 - 11.2 - 1.7 + 0 + 0 +2.2 + 3.3
--------------------------------------------------
7
= -2.1
The decibel level of sound is 50dB greater on a busy street than in a quiet room where the intensity of sound is 10^-10 watt/m^2. The intensity of sound in the busy street is watt/m^2?
Ok this is the best i've got.
a^2+6a+9
The answer is -7, or x = -7.
12d - 7 = 41
12d = 48
d = 4
