# gnozahs

Most popular questions and responses by gnozahs
1. ## Calculus

If f(x)=4sinx/1+cosx then f'(x)=_____? I think that the derivative of 4sinx would be 4cos and cosx would be sinx but I don't know where to go from there.

2. ## Chemistry

Use the drawing of a molecular orbital energy diagram for ClF to predict the bond order?

3. ## Chemistry

Rank the crystal lattice structures in order of decreasing efficiency of space in the structure? Face centered cubic, body centered cubic, simple cubic, hexagonal close packing.

4. ## Chemistry

In the context of a silicon-based semiconductor, match each of the following descriptions to the type of semiconductor. dopant:boron contains electron holes contains extra electrons dopant:phosphorus n-type semiconductors or p-type semiconductors

5. ## C Programming

Write a program that prompts the user to enter a temperature, followed by a letter representing Celsius (C) or Fahrenheit (F). Then prompt the user for the conversion type and print the results to the screen with one decimal point. If the user enters a

6. ## Chemistry

Use the drawing of MO energy diagram for CO to predict the bond order.

7. ## Calculus

find the derivative of f(x)=tanx-4/secx I used the quotient rule and got (sec^2x-4)(secx)-(tanx-4)(cosx)/sec^2x but I'm pretty sure that's wrong. Help. Thanks.

8. ## C Programming

Okay, question. What if I inputted this: Enter a temperature: 32 Enter 'C' for Celsius or 'F' for Fahrenheit: c Choose a conversion ('C' for Celsius or 'F' for Fahrenheit): c The temperature is: 0.0 C. I want the program to read [The temperature is: 32 C.]

9. ## Calculus

Use implicit differentiation to find the slope of the tangent line to the curve sqrt of x + sqrt of y = 8

10. ## C Programming

How do you reprompt after the user inputs a wrong number into the program in C Programming? Loop structure? i.e. I want my code to do this: Enter a Compass Heading: 500.7 Please Input a Compass Heading between 0 and 360 Degrees. Enter a Compass Heading:

11. ## C Programming

This is what the program needs to do: Enter a temperature: 32.4 Enter 'C' for Celsius or 'F' for Fahrenheit: C Choose a conversion ('C' for Celsius or 'F' for Fahrenheit): F The temperature is: 90.3 F. How would I store the input when it asks for C or F,

12. ## Calculus

Consider the function f(x)=x^4 + 8sqrtx Let F(x) be the antiderivative of f(x) with F(1)=-4. Then F(x)=_____

13. ## Chemistry

What is the vapor pressure of ethanol at 13 C?

14. ## C Programming

I don't know what to do now. Below is my code I have so far but I have no idea what to do next. Here's the prompt for what the program should do: Welcome to the Weather Balloon Altitude and Velocity Program. Enter the Balloon's Starting Time: 1 Enter the

15. ## Calculus

f(x)=sin^(7)x The 7 is an exponent and the x is not. Find the derivative.

16. ## calculus

Find the derivative of f(x)=[lnx]^4

17. ## Calculus

If f(t)=(t^2+6t+2)(3t^2+3) then f'(t)=_____? and f'(3)=______?

18. ## Calculus

If f(x)=6x+9/3x+1 then f'(x)_____? and f'(3)=_____?

19. ## calculus

Determine the infinite limit of the following function. Lim as x-->zero 1/x^2(x+7) and lim as x-->3 from the left side 2/x-3

20. ## Calculus

If the equation of the tangent line to the curve: xy^3+xy=6, (3,1) find m and b

21. ## Chemistry

Xrays with a wavelenth of 1.70A scatter at an angle of 21.5 degrees from a crystal. If n=1, what is the distance between planes of atoms in the crystal that give rise to this scatterying? So far I've gotten .367 radians but I have no idea where to go from

1. ## C Programming

Also, what do you mean by set maxHeight to -1000; ?

posted on October 3, 2009
2. ## C Programming

Ok, I changed all my floats to double floats and changed my scanfs to read in double floats. I'm looking at the code you posted and I have a question. What would go into "time"? Like when you say time=staringtime; time

posted on October 3, 2009
3. ## C Programming

I remember my instructor telling us that we couldn't use a for loop to create the table because for loops must use integers, and for us to use a while loop since the starting time, time increment, and ending time are floating point numbers, and not

posted on October 2, 2009
4. ## C Programming

Ah! Thanks. When I was doing my if and while statements, I kept doing (heading < 0.0 || > 360.0) and kept wondering why it wasn't working. It needs to be while (heading 360.0);

posted on October 1, 2009
5. ## C Programming

Hmm, code was too long for the post? Here's a second try. /* Directives */ #include int main(void) { double heading; /*compass heading in degrees*/ /* Get compass heading */ printf("Enter a Compass Heading: "); scanf("%lf", &heading); /* Display equivalent

posted on September 30, 2009
6. ## C Programming

Yeah! I keep forgetting to write comments for each part of my code. But I'll make sure I write up good comments for the code.

posted on September 30, 2009
7. ## C Programming

Yes, I have learned the if else statements. I made another switch statement within the first switch statement to account for the F to F and C to C and that did the trick. Thanks.

posted on September 29, 2009
8. ## C Programming

MathMate was helping me with it the other day. Everything works correctly except for when I convert it from Celsius to Celsius (same thing), I'm wondering how I would make a code to make it output the same input number since it's going to be the same

posted on September 29, 2009
9. ## C Programming

Yeah, at first I had the formulas in the wrong place, then I put 5/9 in one of the formulas instead of 9/5. Thanks for all your help man. I don't know what I would do without you. THANK YOU!!!

posted on September 26, 2009
10. ## C Programming

Oh! There's my problem. It's 9/5, not 5/9.

posted on September 26, 2009
11. ## C Programming

Hmm, my F to C conversion works fine but my C to F is not giving me the right output. My code for C to F is (temp * 5/9) + 32. I think it's the way you divide the 5/9. Starting out with 32.4, when I do it a certain way on my calculator, I get 50, which the

posted on September 26, 2009
12. ## C Programming

It doesn't close out the window. It just goes back to the ~> Now I just gotta figure out why my math is wrong since it's not spitting out the correct temperatures after the conversion.

posted on September 26, 2009
13. ## C Programming

We have just talked a little bit about loops structures. Haven't gotten into any coding with it though.

posted on September 26, 2009
14. ## C Programming

Nevermind! I found out how to end the program if it's not C,c,f,F after experimenting. return(0); =]

posted on September 26, 2009
15. ## C Programming

Ok, I replaced the second switch with the code you provided earlier and now I got the second switch to operate correctly. I'm just wondering how to end the program if the user does not enter C,c, F, f.

posted on September 26, 2009
16. ## C Programming

Thanks! Now the first switch is working. But how do you end the program if the user inputs something else than C,c,F,f? It displays "Invalid Syntax" but it still moves onto the next line. I want it to just stop at "Invalid Syntax" if the user doesn't input

posted on September 26, 2009
17. ## C Programming

Okay, so since my first switch statement is useless, how would I go about getting the program to only recognize F, f, C, and c only and if anything else than that is inputted for it to display "Invalid Syntax"?

posted on September 26, 2009
18. ## C Programming

Alright. I think I'm almost there. I'm just having a slight problem when I'm running the program. This is how it should look like (for reference). Enter a temperature: 32.4 Enter 'C' for Celsius or 'F' for Fahrenheit: C Choose a conversion ('C' for Celsius

posted on September 26, 2009
19. ## C Programming

Oh yeah, and I need to use a switch statement in this program. The instructor's orders.

posted on September 26, 2009
20. ## C Programming

I'm guessing the //get char. from keyboard is a comment telling what the code you just wrote means?

posted on September 26, 2009
21. ## Calculus

I couldn't figure it out.

posted on June 23, 2009
22. ## Calculus

Oh, the s is not supposed to be there.

posted on June 22, 2009
23. ## spanish

Try using the online translator and see if that helps?

posted on June 13, 2009
24. ## calculus

Thank you! I've been stuck on that problem all night.

posted on June 11, 2009
25. ## Calculus

cos(x) + 4 sin(x) is correct. How did the 4 end up with the sin and not with the cos?

posted on June 10, 2009
26. ## Calculus

I got the same answer but for some reason, it's not the right answer(webwork). Thanks though!

posted on June 8, 2009
27. ## Chemistry

Ethanol has a heat of vaporization of 38.56 kJ/mol and a normal boiling point of 78.4 C.

posted on May 11, 2009