As humans begins Continue to change earths environment, which animal species will be most likely to survive?
1 answer:
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Answer:
Odds to be given for an event that either Romance or Downhill wins is 11:4
Explanation:
Given an odd, r = a : b. The probability of the odd, r can be determined by;
Pr(r) = ÷ (
So that;
Odd that Romance will win = 2:3
Pr(R) = ÷ (
= ÷
=
Odd that Downhill will win = 1:2
Pr(D) = ÷ (
= ÷
=
The probability that either Romance or Downhill will win is;
Pr(R) + Pr(D) = +
=
The probability that neither Romance nor Downhill will win is;
Pr(neither R nor D) = (1 - )
=
The odds to be given for an event that either Romance or Downhill wins can be determined by;
= Pr(Pr(R) + Pr(D)) ÷ Pr(neither R nor D)
= ÷
=
Therefore, odds to be given for an event that either Romance or Downhill wins is 11:4
Answer:
The specific heat capacity of the unknown metal is 0.223
Explanation:
Calorimetry is the measurement and calculation of the amounts of heat exchanged by a body or a system.
There is a direct proportional relationship between heat and temperature. The constant of proportionality depends on the substance that constitutes the body as on its mass, and is the product of the specific heat by the mass of the body. So, the equation that allows calculating heat exchanges is:
Q = c * m * ΔT
where Q is the heat exchanged by a body of mass m, made up of a specific heat substance c and where ΔT is the temperature variation.
In this case, you know:
- Q= 418.6 J
- c= ?
- m= 75 g
- ΔT= 25 C
Replacing:
418.6 J= c* 75 g* 25 C
Solving:
c= 0.223
<u><em>The specific heat capacity of the unknown metal is 0.223 </em></u><u><em></em></u>
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