Answer
According to newton law of cooling

and

now At Ta = 100
T₀ = 10 °C
T₁ = 12° C

10 = C + 100
C = -90
now,



at time equal to t
T(t) = 70



t = 48.88 s
hence, after 48.88 s the temperature of the body will be 70°C
b) time taken to reach 98°C



t = 390 s
hence, after 390 s the temperature of the body will be 98°C
Because triangles also equal a total of 180 degrees, the answer is B
Answer:
The first one.
Step-by-step explanation:
The symbol that you are comparing the numbers with is equal two or greater than and you have to be 48 inches or taller.
Answer:
Step-by-step explanation:
(x+4)² + y² = 1.5²
Answer:
The value of x is 23.
Step-by-step explanation:
5x-20+85=180
5x+65=180
5x=115
x=23