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ohaa [14]
3 years ago
11

Evaluate the following expression when a = -3, b = 2, c = 5, and d= -4. 4c + d

Mathematics
2 answers:
Delicious77 [7]3 years ago
8 0

Answer:

-24

Step-by-step explanation:

this is how I think it should be done

Solution:

4c+d

4×5(c)-4(d)

20+-4

=-24

Elan Coil [88]3 years ago
4 0

Answer:

Hello!!! Princess Sakura here ^^

Step-by-step explanation:

The first step you need to do is plug in the numbers...

4(5)+(-4)

Then you will distribute the positive 1 but that won't change much...

4(5)-4

Then you'll have to multiply the 4 and 5 to get....

20 -4

Now from here should be a piece cake, so the answer is...

16\\

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murzikaleks [220]

Answer:

The model does not fits the data well.      

Step-by-step explanation:

Correlation:

  • Correlation is a technique that help us to find or define a relationship between two variables.
  • It is a measure of linear relationship between two quantities.
  • A positive correlation means that an increase in one quantity leads to an increase in another quantity
  • A negative correlation means with increase in one quantity the other quantity decreases.

R-square, R^2

  • The quantity R-squared is an indicator of the predictive power of a model.
  • It explains the variation in the dependent variable due to independent variable.
  • It shows how well the model fits the data.
  • R-squared is also known as the  coefficient of determination.

R^2 = \text{(Correlation coefficient)}^2= (0.6)^2 = 0.36 = 36\%

Therefore, only 36% of the variations in the dependent variable is explained by the independent variable in the model which means more than 50% of variation cannot still be explained in the dependent variable.

Hence, the model does not fits the data well.

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4 years ago
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y=-2x-4

Step-by-step explanation:

4 0
3 years ago
2/4 lb= ? plz anwser
Minchanka [31]

Answer:

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Step-by-step explanation:

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Step-by-step explanation:

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I really need help on rate changes!!
mrs_skeptik [129]

Answer: The third and fourth problem are linear

Step-by-step explanation:

3rd problem follows a pattern

X  6  5   4  3

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