The polynomial p(x) = –2x3 + 3x + 4 is given. Which conclusion is valid if P(1) = 5?

Giving out brainliest answer !!!! help me out asap please !!!!

Tamiku [17]

9514 1404 393

Answer:

45.6°

Step-by-step explanation:

The attached result was found by typing "arccos(7/10) in degrees" into a web browser search box.

Your calculator can give you the same result. The inverse cosine function often shares a key with the cosine function. It is often marked as cos⁻¹. Be sure that the angle mode is set to degrees, not radians.

5 0

3 years ago

Read 2 more answers

Assume that a two-dimensional rectangular array of integers called matrix has been declared with six rows and eight columns. Wri

tatyana61 [14]

Answer & Step-by-step explanation:

//written in java

// program uses a for loop to exchange the contents of the second column with the fifth column in a six rows and eight columns array

public class Main{

public static void main(String[] args) {

//specifying an integer to hold values during swap

int value = 0;

//sample array of

int[][] arr = {

{1, 2, 3, 4, 5, 6, 7, 8},

};

//loop to swap column 2 and column 5

for (int i = 0; i < arr.length; i++) {

for (int j = 0; j < arr[i].length; j++) {

if(j==1){

value = arr[i][j];

}

if(j==4){

arr[i][1] = arr[i][j];

arr[i][j] = value;

}

//loop to print out result

for (int[] ints : arr) {

for (int anInt : ints) System.out.print(" " + anInt);

System.out.print("\n");

}

5 0

3 years ago

In Exercise, find the derivative of the function.<br> y = e5x

mariarad [96]

Answer: The derivative of the function $y=e^{5x}$ is $5e^{5x}$ .

Step-by-step explanation:

We know that the derivative of $e^{ax}$ with respect to x is given by :

$\dfrac{d}{dx}(e^{ax})= a e^{x}$ (1)

The given function is $y=e^{5x}$

Differential both sides with respect to x , we get

$\dfrac{dy}{dx}=\dfrac{d}{dx}(e^{5x})$

$\Rightarrow\ \dfrac{dy}{dx}=5e^{5x}$ ( Using (1))

Therefore , the derivative of the function $y=e^{5x}$ is $5e^{5x}$ .

4 0

4 years ago

(4 x 102) + (7 x 103)<br> Answer:

babunello [35]

Answer:

1,129

Step-by-step explanation:

Screenshot below will explain the answer and hopefully help you out in the future :)

7 0

3 years ago

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Geometry . Cosines / sines. Find a and round to the nearest 10th

Lorico [155]

This is the good part of Trigonometry, actually measuring triangles. It's much better than all the identities around sine and cosine and the rest, which actually have more to do with circles than triangles.

This part of trig has a short menu:

Law of Cosines. Three ways to write it, one is $c^2 =a^2+b^2-2ab \cos C$