Calibration curves <span>absorbance versus concentration may deviate from a straight line when A<0.1 and when A>1 maybe because at these values the substances react to light differently which will cause it to not follow a linear graph. Hope this helps. Have a nice day.</span>
3x + 4y = 17.....multiply by 4
-4x - 3y = -18 ...multiply by 3
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12x + 16y = 68 (result of multiplying by 4)
-12x - 9y = - 54 (result of multiplying by 3)
------------------add
7y = 14
y = 14/7
y = 2
3x + 4y = 17
3x + 4(2) = 17
3x + 8 = 17
3x = 17 - 8
3x = 9
x = 9/3
x = 3
ur solution is (3,2)
Neato
assuming you mean
![g(x)=-1(x-2)^2-3](https://tex.z-dn.net/?f=g%28x%29%3D-1%28x-2%29%5E2-3)
remember
in form
![f(x)=a(x-h)^2+k](https://tex.z-dn.net/?f=f%28x%29%3Da%28x-h%29%5E2%2Bk)
a is leading coficient
(h,k) is vertex
k will be the minimum or max value of the function
if a is positive, then the parabola opens up and k is minimum
if a is negative, then the parabola opens down and k is max
given
a is negative
the parabola opens down and k is the max value
it is -3
the max value is -3, which occors at x=2
g(2)=-3 is max
Set 3x=210
We find that x=70
We then do 6•70 to find how many voted in total
Answer-420 total people voted
Answer:
Number of volleyballs bought = 8
Number of basketballs bought = 11
Step-by-step explanation:
Given that:
Total amount spent = $204.20
Let,
x be the number of volleyballs
y be the number of basketballs
According to given statement;
y = x+3 Eqn 1
8.20x+12.60y=204.20 Eqn 2
Putting value of y from Eqn 1 in Eqn 2
8.20x + 12.60(x+3) = 204.20
8.20x + 12.60x + 37.80 = 204.20
20.80x = 204.20 - 37.80
20.80x = 166.40
Dividing both sides by 20.80
![\frac{20.80x}{20.80}=\frac{166.40}{20.80}\\x=8](https://tex.z-dn.net/?f=%5Cfrac%7B20.80x%7D%7B20.80%7D%3D%5Cfrac%7B166.40%7D%7B20.80%7D%5C%5Cx%3D8)
Putting x=8 in Eqn 1
y = 8+3 = 11
Hence,
Number of volleyballs bought = 8
Number of basketballs bought = 11