<u>Answer:</u>
Ella will need 6 lemons for 4 times the recipe
<u>Explanation:</u>
Given Ella used ¾ of a bag of lemon to make ½ liters of lemonade
Therefore, we can form an equation as:
¾ bag lemons = ½ liter lemonade
According to question,
Ella recipe is for 1 liter of lemonade
Lemons required for ½ liter lemonade = 
bag
Lemons required for 1 liter lemonade =
= 3/2 bags
To make 4 times the recipe, she will require,
She will need 6 lemons for 4 times the recipe
Basically you know that they are 2 consecutive numbers whose product is 1980.
<span>n*(n+1)=1980 </span>
<span>n^2 + n - 1980 = 0 </span>
<span>(n -44)(n + 45)= 0 </span>
<span>n=44 </span>
<span>so the 2 page numbers is 44 and 45. </span>
<span>The faster way is just to take the square root of 1980 and since that is 44.497 you can conclude that the 2 numbers is below and above it (44, 45)</span>
-2(y-3)=22
-2y+6=22
-2y=16
y=-8
The assumptions of a regression model can be evaluated by plotting and analyzing the error terms.
Important assumptions in regression model analysis are
- There should be a linear and additive relationship between dependent (response) variable and independent (predictor) variable(s).
- There should be no correlation between the residual (error) terms. Absence of this phenomenon is known as auto correlation.
- The independent variables should not be correlated. Absence of this phenomenon is known as multi col-linearity.
- The error terms must have constant variance. This phenomenon is known as homoskedasticity. The presence of non-constant variance is referred to heteroskedasticity.
- The error terms must be normally distributed.
Hence we can conclude that the assumptions of a regression model can be evaluated by plotting and analyzing the error terms.
Learn more about regression model here
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A formula helps you or tells you what to do to find the are, perimeter, volume of any shape. A = 1 x w is a formula to find an area of a 2-d figure. it is a formula becuase it tells you what to do to find the area.
