# Pre- Calculus

21,911 results, page 31
1. ## Pre-Calc

How would you go about finding all the solutions of the equation. I just don't know where to start. 2cos2theta-root3=0

If there is a cylinder that is 3cm. tall and has a radius of 7.5cm. what is the surface area? Please help! Thanks!
3. ## Pre-Algebra

Find 3 consecutive positive integers such that the product of the first and third, minus the second, is 1 more than 5 times the third.
4. ## Math (pre-celc 12)

Find x: 2(5)^x=3^(x+1) I'm not sure what to do with the 2. I think I need to write the equation as log5^2x=log3^(x+1), but I don't know. Thanks
5. ## Pre-Cal

1) describe the relationship between the graphs of f and g. My answer was g is a reflection of f about the x axis but this is wrong.
6. ## Pre-Calc

What is the standard form of the equation of the parabola that has a vertex at (4, 3) and passes through the point (-4, -2)? Is it f(x) = -5/64(x - 4)^2 + 3?
7. ## pre cal 2

verify the identity tanx times cotx/cosx=secx
8. ## Pre Calc

x^2+y^2=625 Find an equation of the line that is tangent to the circle at this point.
9. ## Pre calc

Solve the given equation cos(θ) − sin(θ) = 1 I got the answer to be 3pie/2 and 0 but its wrong can someone help Thank you
10. ## Pre cal

determine the function f whose graph is given the vertex is (3,-13) and the y intercept is -4 how whould i work this out

13. ## pre-algrebra

needing to solve word problems with linear equatios, if there something to help work into them?
14. ## Pre-Calc

I am stuck solving this problem, any help please..Many thanks find all numbers x that satisfy the given equation ln(2x) ------- =2 ln(3x)
15. ## pre-calc

cosx= -8/17, 180<x<270 find sin x/2= cos x/2= tan x/2=
16. ## Math, Pre Calc

Given that (+-2) and i are the roots of a 4th degree polynomical, find the equation. Please help! Thank you:)
17. ## pre cal

Find f of g of h and state the exact domain. f(x) = sqrt x g(x)= e^x - 13e^x/2 + 42 h(x) = 2x I need help on this one bad! Please help!
18. ## pre cal 2

find the exact solutions in the interval [0,2pi), sin4x=-2sin2x
19. ## pre cal

how do you determine the the quadratic function if the problem gives you a graph with the line has points of (-3,5) and (0,-4)?
20. ## pre-cal **need help for test in the morning

Find zeros: f(x)=12x^(3)-107x^(2)-15x+24
21. ## AP HISTORY

What was the least common and least sucessful form of slave resistance pre civi war?
22. ## Pre calc

Find the Domain of the function: f(x)=the square root of the entire fraction- x^2+6x-16 over x^2-2x-15
23. ## Math Pre-Algebra

help!! does anyone know how to write an expression to represent the number of minutes in x hours
24. ## Pre Algebra

A baker can prepare 2 1/2 dozen cupcakes in 1/4 hour. what is the unit rate?
25. ## Pre Algebra

Please help- I need to write a rule for each function. I have watched all the video's but this chart does not seem to have a pattern x y -4 4 0 6 2 7 4 8
26. ## pre-cal

Find the zeros, if any exist. Round your answers to two decimal places.
27. ## pre-algebra

Solve the inequality- -7z<21 See my answers to Jill and Sarah. I hope this helps. Thanks for asking.
28. ## Pre-Algebra

How do I find a linear relationship in a table? I really need help on this. And this is at a 7th grade level...
29. ## Pre Calc

f(x,y)=ln(5x^2-7y^3) Find ALL 2nd derivatives. fxx,fxy,fyx,fyy
30. ## pre cal

If (a, b) is a point on the unit circle that corresponds to the angle t, then tan(t) equals:
31. ## pre-algebra

how do you rewrite rational numbers -0.56, -2.3,2.11, I do know where to start I'm a mom trying to help my son with his homework
32. ## pre cal

how many real number solutions are ther to the equation 10x^2+31x=-24
33. ## pre calcalus

angle measure to degree form 401degrees 39minutes 24seconds
34. ## Pre-algebra

State a definition of a polynomial in the x. Give an example of a monomial, a binomial and a trinomial. Thank you.
35. ## Pre-Calc

Can someone explain how to graph polar coordinates on a TI-84 Plus calculator-I can't find the directions anywhere Thank you
36. ## pre-calc graphing

Sketch the graph of f(x)= [ (1/2) tanx + 1 ] as x varies from pie/2 to 3pie/2
37. ## Pre-Calc

Find f(a) where a is in the domain of f. f(x) = -1/x^2 I got a few steps into it and failed :( The equation she gave me to plug it into is (f(a+h)-f(a))/h
38. ## pre-cal

g(x)=-4/x; x=-5, x=-5+h Determine the average rate of change of the function between the given values of the variable.
39. ## Pre-Calc/Trig...

I have one way, but cant think of another? Show two ways of finding y if y = log4 64. Explain your thinking. 4^x=64 x=3
40. ## Math

And which situation what do you need a percent less someone to solve a problem? 7th Grade Pre Algebra
41. ## pre cal

For a normal curve, what percentage of values falls beyond two standard deviations from the mean?
42. ## Pre-Calc

Find the zeros of the function algebraically. Show all work. f(x)=x^2-8x+15 ---------------- 10x
43. ## Pre calc

Perform the indicated operation and simplify the result Tanx(cotx-cscx)
44. ## Pre-Calc/Math

Given cos x=2/3 and 3pi/2<x<2pi, find the exact value of cos2x?
45. ## pre-algebra

Given the linear equation y=-5x-2. Find the y-coordinates of the points (-1), (-2), and (1). Please show all of your work.