Answer:
40
Step-by-step explanation:
1.Kknow the following information;
Remember, the sum of degrees of angles in a triangle is 180.
So say if a traingle contained;
<1, <2, <3,
Then:
<1 + <2 + <3 = 180
2. State the given, and set up an equation;
In this case, it is given that;
<1 = 115
<2 = 25
Therefore, set up the equation;
115 + 25 + <3 = 180
3. Solve the equation;
115 + 25 + <3 = 180
Simplify,
140 + <3 = 180
Inverse operations,
140 + <3 = 180
-140 -140
<3 = 40
Answer:
keep the model answer photo
Answer:
y=2x+1
Step-by-step explanation:
(1,3). y=mx+b or 3=2 × 1+b, or solving for b: b=3-(2)(1). b=1
Solution:
Number of babies which are female = 50%=
So, if Population of 50 is considered , and 50% of population is female then out of 25 must be female.
Population of female can't exceed 25.
Probability of an event = 
Probability that 20 or more of the 50 babies born today were female
= ![_{20}^{50}\textrm{C}\times [\frac{1}{2}]^{20} \times [\frac{1}{2}]^{30}+_{21}^{50}\textrm{C}\times [\frac{1}{2}]^{21} \times [\frac{1}{2}]^{29}+_{22}^{50}\textrm{C}\times [\frac{1}{2}]^{22} \times [\frac{1}{2}]^{28}+_{23}^{50}\textrm{C}\times [\frac{1}{2}]^{23} \times [\frac{1}{2}]^{27}+_{24}^{50}\textrm{C}\times [\frac{1}{2}]^{24} \times [\frac{1}{2}]^{26}+ _{25}^{50}\textrm{C}\times [\frac{1}{2}]^{25} \times [\frac{1}{2}]^{25}](https://tex.z-dn.net/?f=_%7B20%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B20%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B30%7D%2B_%7B21%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B21%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B29%7D%2B_%7B22%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B22%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B28%7D%2B_%7B23%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B23%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B27%7D%2B_%7B24%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B24%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B26%7D%2B%20_%7B25%7D%5E%7B50%7D%5Ctextrm%7BC%7D%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B25%7D%20%5Ctimes%20%5B%5Cfrac%7B1%7D%7B2%7D%5D%5E%7B25%7D)
Simulation of the Above Situation
If we use a double sided coin and a sign heads us females and Tails as males,Toss the coin 50 times , number of times Heads comes shows number of females born and number of times tails appears shows Population of men.
It may not happen that Number of heads =Number of tails if we toss the coin 50 times.So if number of tosses increases the chances are more likely that , number of heads= Number of tails. But for above problem we just have to toss coin 50 times only, that is
Number of males = Number of females
The answer is 9. 9 goes into both numbers