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REY [17]
3 years ago
8

What is the answer to 18-4K=-10-4k?

Mathematics
1 answer:
Natalka [10]3 years ago
6 0

Answer:

  no solution

Step-by-step explanation:

add 4k to both sides of the equation and you have ...

  18 = -10  . . . .  false

There is no value of k that will make this statement true. There is no solution.

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Select the appropriate technique with the problem you are looking for.
Alenkinab [10]

Answer:

A, B, C, D

Step-by-step explanation:

(A) Checking the Equal Variance Assumption, the appropriate technique to use is:

- The ANOVA (Analysis of Variance) F test

- Plot residuals against fitted values

(B) Checking the Normal Assumption, the appropriate techniques to use are:

- Test for Kurtosis & Skewness

- Kolmogorov-Smirnov Test

- Q-Q Plots (the graphical method) also known as Quantile Plot

- Do not use a histogram; it is not advisable

(C) Checking for Model Misspecification, the appropriate techniques to use are:

- The Ramsey Regression Specification Error Test; also called RESET

- The Davidson & MacKinnon J. Test

(D) Checking for dependent errors, the appropriate technique to use is:

- Plot residuals against time variables

6 0
3 years ago
Factor the polynomial by its greatest common monomial factor.<br> 4425 - 66K4 + 7763
lubasha [3.4K]

Answer:

=−66k4+12188

Step-by-step explanation:

7 0
3 years ago
I did the first question already I need help with the second pls :&gt;
OleMash [197]

Answer:

The box is considered a cube so,

4 x 4 = 16

56 divided by 16 = 3.5 is your height

1/2 x 1/2 x 1/2 = 1/8.

56 divided by 1/8 = 7 cubes

5 0
3 years ago
What is the product?
xxMikexx [17]

Answer:

{ \tt{(5r - 4)( {r}^{2} - 6r + 4) }} \\  = {  \tt{( {5r}^{3}  -  {30r}^{2}  + 20r - 4 {r}^{2} + 24r - 16) }} \\  = { \tt{ {5r}^{3} - 34 {r}^{2}  + 44r - 16 }}

7 0
3 years ago
Read 2 more answers
Given the diagram below, what is cos(45*)? <br><br> A.<br><br><br> B.<br><br><br> C.<br><br><br> D.
alina1380 [7]

Answer:

The answer is option B

Step-by-step explanation:

To find cos 45° we must first find the adjacent and the hypotenuse

Let the adjacent be x

Let the hypotenuse be h

To find the adjacent we use tan

tan ∅ = opposite / adjacent

From the question

the opposite is 9

So we have

tan 45 = 9 / x

x tan 45 = 9

but tan 45 = 1

x = 9

Since we have the adjacent we use Pythagoras theorem to find the hypotenuse

That's

h² = 9² + 9²

h² = 81 + 81

h² = 162

h = √162

h = 9√2

Now use the formula for cosine

cos∅ = adjacent / hypotenuse

The adjacent is 9

The hypotenuse is 9√2

So we have

cos 45 = 9/9√2

We have the final answer as

<h3 /><h3>cos 45 = 1 / √2</h3>

Hope this helps you

3 0
3 years ago
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