jjfstar

Newspaper articles often have statements such as "10,000 volts of electricity surged through the victim's body."

What is wrong with this statement?

I fried the meat today. Is there any chance i could get sick?

You have just arrived at school on a very cold, dry day. You open your car door and then slide across the cloth seat and step outside. You reach towards the metal car door handle and there is a spark-an electrical discharge. Explain the on the atomic level what happened to the metal door handle before the electrical discharge occurred.

(Also draw a sketch please)

If the 20 year old will be always with 25 year old when driving the car, will the rent a car companies let me do that?

1) If C is obtained from A by multiplying the 2rd row of A by 5, then det(C) =?

Write a method that returns the number of different letters that appeared in the processed field?

this is all i've got so far

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public static void main(String [] args) {

// Declare and create an array of 26 int

int[] letterCounts = new int[26];

char[] chars = new char [];

// For each lowercase letter in the array, count it

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

letterCounts[chars[] - 'a']++;

} // End of int[] countLetters(char[])

i guess first i have to find the derivative and set it equal to zero.

derivative i got y=1-(1/x)

then i set it equal to zero and i got x=1

(0________)1(___________)

(-) (+)

got positive for both sides not sure what to do next

I found derivative of it and i got cosx-sqrt(3)sinx but i am not sure how to find the x

1. e^(y/x)

Calculate the derivative with respect to x

2. y^4-2y=4x^3+x

1. y=sin(x^2)cos(x^2)

2. y=cos^3(12theta)

The first one i got 2xcos(x^2)-2xsin(x^2) (using the chain rule) but this is wrong too

i got -sin^3(12theta)*12 for the second one but i think its wrong.

Write a program reads in a series of passwords into an array. Store 10 passwords. After creating the password array, have the reader enter a password and see if it is in the array. Fi it is there, print "Valid password" and if it is not there, print "Invalid password."

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public static void main (String [] args){

String [] myArray = new String[10];

int m;

for (m=0;m<9;m++){

myArray[0] = "jasmine22";

myArray[1] = "jackson77";

myArray[2] = "michaelawesome";

myArray[3] = "whoareyou";

myArray[4] = "youlookcute";

myArray[5] = "eggplantcurry";

myArray[6] = "partygirl888";

myArray[7] = "dancethenightout";

myArray[8] = "loveisintheair";

myArray[9] = "coconutcrocodile";

}

System.out.println("Enter a password: ");

Scanner in = new Scanner(System.in);

String myString = in.next();

if (myString == myArray[m]){

System.out.println("Password Accepted");

}

else

System.out.println("Password Rejected");

}

}

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it rejects everything i type. it would say "password rejected"

Write a program that asks the user to store 10 numbers in an array. You should then print the array in the order entered and then print in reverse order. However, instead of putting all the information in the main, you should use a class called PrintIt. ((Have a method that will print the array in the order entered. Also need a method that will print the array in reverse order.))--- This is the part where I don't know how to do it in the PrintIt class. I know how to create a tester.

This is the whole question: Using Java, Create a program that has scanner to input 10 numbers in an array. Then print the array in the order entered and then print in reverse order. I know how to all of it except for printing out the array in reverse order. Thanks.

True or False, Need Help, Don't post comments like "Lookup on google, or textbook" or other negative comments. If you can't answer the question, then forget it. I will choose the best answer and you will receive 10 points. :)

1. If cosx = 1/2, then x must be π/3.

2. For all values of θ, sin (-θ) = sin θ.

3. None of the six trigonometric functions have inverse functions because each of the trigonometric 4. functions has an infinite number of inputs for each output.

5. On the unit circle, two points on the same horizontal line have the same sine value.

6. cosπ/6=√ andcos11π/6=√

7. A quadratic trigonometric equation has at most two solutions in the interval [0, 2π). π/3>π/4>π/6

8. The output of any inverse trig function is the measure of an angle.

9. The equation, tan x = 20, has an infinite number of solutions.

10. If sin x = 0.5, then sin-1(0.5) = x.

11. sinπ/3 > sinπ/4 > sinπ/6

12. The solution to the equation, 3 sin x = 2, is given by sin-1(2/3).

13.Once one solution θ1 is found to a trig equation, another solution will always be (π - θ1).

14. The sine function does not “double back” on itself in the interval [-π/2, π/2].

15. The cosine function does not “double back” on itself in the interval [-π/2, π/2].