Answer:
YEP! YOURE CORRECT!
Step-by-step explanation:
Answer:
Step-by-step explanation:a or b ?
Answer:
The table a not represent a proportional relationship between the two quantities
The table b represent a proportional relationship between the two quantities
Step-by-step explanation:
we know that
A relationship between two variables, x, and y, represent a proportional variation if it can be expressed in the form
or ![y=kx](https://tex.z-dn.net/?f=y%3Dkx)
<u><em>Verify each table</em></u>
<em>Table a</em>
Let
A ----> the independent variable or input value
B ----> the dependent variable or output value
the value of k will be
![k=\frac{B}{A}](https://tex.z-dn.net/?f=k%3D%5Cfrac%7BB%7D%7BA%7D)
For A=35, B=92 ---> ![k=\frac{92}{35}=2.63](https://tex.z-dn.net/?f=k%3D%5Cfrac%7B92%7D%7B35%7D%3D2.63)
For A=23, B=80 ---> ![k=\frac{80}{23}=3.48](https://tex.z-dn.net/?f=k%3D%5Cfrac%7B80%7D%7B23%7D%3D3.48)
the values of k are different
therefore
There is no proportional relationship between the two quantities
<em>Table b</em>
Let
C ----> the independent variable or input value
D ----> the dependent variable or output value
the value of k will be
![k=\frac{D}{C}](https://tex.z-dn.net/?f=k%3D%5Cfrac%7BD%7D%7BC%7D)
For C=20, D=8 ---> ![k=\frac{8}{20}=0.40](https://tex.z-dn.net/?f=k%3D%5Cfrac%7B8%7D%7B20%7D%3D0.40)
For C=12.5, D=5 ---> ![k=\frac{5}{12.5}=0.40](https://tex.z-dn.net/?f=k%3D%5Cfrac%7B5%7D%7B12.5%7D%3D0.40)
the values of k are equal
therefore
There is a proportional relationship between the two quantities
The linear equation is equal to
![D=0.40C](https://tex.z-dn.net/?f=D%3D0.40C)
Answer:
373.8mmHg
Step-by-step explanation:
a =height (in km) above sea level,
the pressure P(a) (in mmHg) is approximated given as
P(a) = 760e–0.13a .
To determine the atmospheric pressure at 5.458 km, then we will input into the equation
P(5.458km) = 760e–0.13a .
= 760e^(-0.13×5.458)
=760e^-(0.70954)
= 760×0.4919
=373.8mmHg
Therefore, the atmospheric pressure at 5.458 km is 373.8mmHg
so john is x and if Maya has the same as john but -3 then
x+x-3
but sam is still missing and she has half of Maya which is 0.5x - 1.5
so the equation is
x+x-3+0.5x-1.5=68
and then you add 3 and 1.5 to 68 which is
2.5x=72.5
and you divide by 2.5 which is 29
John has 29 points