For X intercept = (2,0)
For Y intercept = (0,5)
Answer:
Mortality rate is 0.5 per 1000 habitant
the number of deaths have increased (from 210 to 250)
Step-by-step explanation:
Hello
Mortality rate is the number of deaths in a specific population,usually expressed in units of deaths per 1,000 individuals per year
![Mortality\ rate\ (S)= \frac{(D)}{(P)} *10^{n} \\\\\\\\](https://tex.z-dn.net/?f=Mortality%5C%20rate%5C%20%28S%29%3D%20%5Cfrac%7B%28D%29%7D%7B%28P%29%7D%20%2A10%5E%7Bn%7D%20%5C%5C%5C%5C%5C%5C%5C%5C)
where
S=Mortality rate
D=deaths
P= population
n= is a conversion form ,such as multiplying by 10^{3}=1000, to get mortality rate per 1,000 individuals( we will use n=3)
step 1
asign
S=unknown
D=250
P=500000
n=3, (for each 1000 people)
step 2
Replace
![S=\frac{250}{500000}*1000\\S=\ 0.5\ per\ 1000](https://tex.z-dn.net/?f=S%3D%5Cfrac%7B250%7D%7B500000%7D%2A1000%5C%5CS%3D%5C%200.5%5C%20per%5C%201000)
Mortality rate is 0.5 per 1000 habitant
step 3
what if S=0.42
S=0.42(assuming it is 0.42 per 1000,n=3)
D=unknown
P=500000
![(S)= \frac{(D)}{(P)} *10^{n}\\\\isolatin D\\\\S*P=D*10^{n}\\ D=\frac{S*P}{10^{n} } \\\\and\ replacing\\\\D=\frac{(0.42)*(500000)}{10^{3} }\\\\ Deaths=210\\](https://tex.z-dn.net/?f=%28S%29%3D%20%5Cfrac%7B%28D%29%7D%7B%28P%29%7D%20%2A10%5E%7Bn%7D%5C%5C%5C%5Cisolatin%20D%5C%5C%5C%5CS%2AP%3DD%2A10%5E%7Bn%7D%5C%5C%20D%3D%5Cfrac%7BS%2AP%7D%7B10%5E%7Bn%7D%20%7D%20%5C%5C%5C%5Cand%5C%20replacing%5C%5C%5C%5CD%3D%5Cfrac%7B%280.42%29%2A%28500000%29%7D%7B10%5E%7B3%7D%20%7D%5C%5C%5C%5C%20Deaths%3D210%5C%5C)
the number of deaths have increased (from 210 to 250)
Have a great day
Answer:
80
Step-by-step explanation:
Answer:
p = 4.0
q = 2.0
angle <P = 64 degrees
Step-by-step explanation:
We can use the definition of cosine to find the value of side p (the adjacent side to the 26 degree angle, via the formula:
![cos(26^o)= \frac{adjacent}{hypotenuse} \\cos(26^o)= \frac{p}{4.5}\\p= 4.5 *cos(26^o)\\p=4.0445](https://tex.z-dn.net/?f=cos%2826%5Eo%29%3D%20%5Cfrac%7Badjacent%7D%7Bhypotenuse%7D%20%5C%5Ccos%2826%5Eo%29%3D%20%5Cfrac%7Bp%7D%7B4.5%7D%5C%5Cp%3D%204.5%20%2Acos%2826%5Eo%29%5C%5Cp%3D4.0445)
which rounded to the nearest tenth gives : p = 4.0
Now we use the sine function to help us determine side q:
![sin(26^o)= \frac{opposite}{hypotenuse} \\sin(26^o)= \frac{q}{4.5}\\q= 4.5 *sin(26^o)\\q=1.9726](https://tex.z-dn.net/?f=sin%2826%5Eo%29%3D%20%5Cfrac%7Bopposite%7D%7Bhypotenuse%7D%20%5C%5Csin%2826%5Eo%29%3D%20%5Cfrac%7Bq%7D%7B4.5%7D%5C%5Cq%3D%204.5%20%2Asin%2826%5Eo%29%5C%5Cq%3D1.9726)
which rounded to the nearest tenth gives:
q = 2.0
Finally, we determine the measure of angle P using the fact that the addition of all internal angles of a triangle must add to 180 degrees:
< P + < Q + < R = 180
< P + 26 + 90 = 180
< P = 180 - 26 - 90
< P = 64 degrees
Step-by-step explanation:
2/5 = x/15+x
= 10
she must add 2 girls to have above 40% girls in the class
pls give brainliest