Pre Calculus
21,589 results, page 61

Calculus
f(x)=xe^x^2. What interval is this function increasing. 
Calculus
How do the constants 5, 4, and 12 in f(x) = 5x^2  4x + 12, affect the derivative? Thanks! 
Calculus AB
Find the limit as x>infinity of ((3x+2)/(3x+4))^(3x+1) 
calculus
what is the range for the function j(x)=5+sqrt of 2x 
Calculus
Differentiate each function with respect to x: F(x)=x/(x+1)^1/2 
Calculus 1
Differentiate. f(x)=5sqrt(x)sinx 
Calculus
What does it mean when the limit of f(c) doesn't exist? 
Calculus 1
Find the derivative of the function. y=(e^3u e^3u)/(e^3u+e^3u) 
differential calculus
differentiate g(t)=3/sqrt(t) 
Multivariable calculus
Find dy/dx x=te^t y=t+sint 
calculus
If f(x) = 5ex cos x, find f '(x) and f ''(x). 
Calculus
Calculate the approximation. L4, f(x)=cos^2 x , [pi/6, pi/2] 
Calculus
Find c so y=4x+3 is tangent to the curve y=x^2+c 
Math 142 (calculus)
Determine d^2y/dx^2 for y=(5x^5+7)^4 
Calculus
Find the limit as x>infinity of (1+8/x)^x 
Calculus
Evaluate the integral. cot3(4x) dx 
Calculus
Calculate integral [0, infinity) xe^(x) dx 
Calculus
Given dy/dt=4y and y(2)=400. Find y(7). 
Calculus
Find the derivative of f(x)=(2x)^(1/2)ln(15x) 
calculus
Find the critical numbers x1 and x2 of y=(9x^2+3)/4x. 
Calculus pz help urgently
Integrate:sinxcos(x1/4.pi)dx 
Calculus
How do you use usubstitution with 20sin(x^2/35)? 
Calculus
Find the implicit differentiation for each. 1) x^2 = (xy) / (x+y) 2) (x+y)^3 + (xy)^3 = x^4 + y^4 
Calculus Plz Help
If f(x)=x^4, compute f(2) and f'(2) f(2)=___ < ? 
High school calculus
Calculate y when dy/dx = 1/(bx+5)^3 
calculus
area between the curves y^2=4x , 7y=2x+20 , 2x+3y=0 
Calculus (easy)
What is the polar form of (22i)? 
Calculus
Need help with a few questions 
Calculus
solve the equation y'=(sqrt(x))/2y 
Calculus
when x intercept 3, point P(2,5,7) and Q(1,10,14) how to find x,y and z? 
Calculus
lim (x> infinidy) x^2/ln(x)= 1 0 1 e does not exist 
Calculus
Find F'(x) for F(x)= integral[from 1 to x] of cos(t^3)dt 
Calculus
lim x>0 ((73x^5+x^2sinx)/(5cosx)) 
Calculus
Differentiate with respect to x 1/sin x 
Calculus 1
Find the limit. lim x>0 (e^(6/x)+8x)^(x/2) 
calculus
Find lim as (x,y) goes to (0,0) of (e^(x^2y^2)1)/(x^2+y^2). 
calculus
find the inverse of the matrix. [ 16 1 ] 1 16 
Integrals calculus
7/x^28 does it give you 7ln(x^28) 
calculus
Locate the discontinuities of the function y=(5)/(3+e^(1/x)) 
calculus
lim f(x)=? x>3 f(x); 3.7, 3.97, 3.997, 3.9997, ? 
Calculus
Find the slope of x^216xy+y^2=1 at (1,1). Is this 1? 
Calculus
Find dy/dx at the point (3, 1) for the equation x = y^39x^2+5. 
Calculus
Find the dot product of: <1, 7> and <2, ¾>. 
Calculus
find the angle between u=7i+2j and v=4j 
calculus
if y is a function of x and x=e^t/(e^t+1) show that dy/dt=x(1x)dy/dx help me plz 
calculus
how do you work out what u2 is when you are given u:<1,7> and v:<6,4> 
Calculus
Find dz/dy for the following : z=(e^xy)+2ycos(xy1) 
Calculus
Convert to Polar: y/x = 4 A. r = 2 B. r = 16 C. Θ = 76 D. Undefined 
Calculus
How do I find the limit of x/x as x approaches 0? 
calculus
limx>0 3sin 3x/4x would it be 9/4 
Calculus
Differentiate each 1. Y= 1/x + 3/x^2 + 2/x^3 2. Y= x^5(1+ x)^5 3. Y= 4x^2 / 2x+3 Can someone help me I'm lost 
Calculus
M = log(E)11.4/1.5 How do you express E in terms of M? 
Calculus
What is y=18x+13 in standard form? 
Calculus
Solve the inequality 5+(2/x)<1 solution is (1/2,1/3). 
calculus
evaluate the integral. from 0 to 4π t^2 sin(2t) dt 
Math  Calculus
Compute the sum: 81 ∑ (2i1) i=1 
calculus
y=sin^2 (1/x) find the derivative 
Calculus
Find the anti derivative for 4/(x^2+1) 
Calculus
consider the function f(x) = 9/x^3 10/x^7 let F(x) be the antiderivatice of f(x) with F(1)=) then F(x)= 
Calculus
reflexive property of ellipse 
Calculus
let f(x)=1x f(x)=1x and g(x)=x2 +5x.g(x)=x2 +5x. find (f⋅g)(x)(f⋅g)(x) Can someone help me with this I dont know how to do this 
Hellpppp calculus
Solve by elimination. 0.1x + 0.3y = 1.5 0.6y + 0.2x =1.2 
AP Calculus AB
Suppose f(x)= x^5  10 and let h(x) be the inverse of f. Find h'(22). 
AP Calculus
Find x. lim (sin(x))^x x>0 
chem
I'm suppose to calculate the weight percent per volume (grams pre 100cm3) of ethanoic acid in a commercial sample of vineger from the following: (a) 0.4321g of pure momoprotic acid( formula weight 204.2 amu) required 23.45cm3 of naoh for neutralizalion. 
Precalc Math
Use the Law of Sines to solve for all possible triangles that satisfy the given conditions. (If an answer does not exist, enter DNE. Round your answers to one decimal place. Below, enter your answers so that ∠B1 is smaller than ∠B2.) a = 78, b = 109, ∠A = 24° Find : ∠... 
American Government
As the country has grown and evolved, so too has the Executive Office of the President and the independent agencies. Give four specific examples demonstrating how the evolution of the executive branch has mirrored the evolution of the nation. Include at least one pretwentieth... 
Pre Algebra
the problem is that I have to find the length of x. Here's what they say: Find the missing length, when the perimeter is 9x+11 then here are the length that are given on the shape: 2x+3 and 3x+1 How could I solve this? 
Math, PreCalc
the original problem was: Solve: sin(3x)sin(x)=cos(2x) so far i've gooten to: sin(x)(2sin(x)cos(x)1)=cos^2(x)sin^2(x) Where would I go from here? 
Math 156
A child's dose of medicine is 16 of a premeasured dose cup. If the bottle of medicine is the size of 9 dose cups, how many children's doses are there in the bottle? 
PreAlgebra
30 ft pipe is broken in three pieces. The shortest piece is 6ft. shorter than the longest piece. The medium length piece is 2/3 the length of the longest 
Finance
If I have $40,000 of pretax what are the differences between $1,000 tax credit versus a $1,000 tax deduction for a single taxpayer in the 25% tax bracket? 
Precal
The number cis 75 + cis 83 + cis91 +...+ cis 147 is expressed in the form r cis(theta), where 0 <= theta < 360. Find theta in degrees. I need help. 
PreCalc
A quadratic function has its vertex at the point (5,2). The function passes through the point (8,10). Find the quadratic and linear coefficients and the constant term of the function. 
pre cal
Approximate the following logarithms using the properties of logarithms given logb(2)=0.264, logb(3)=0.419, and logb(5)=0.614. logb(24) =? logb(100) =? logb(5b^3) =? 
pre alegra
A product that cost 2,000 increase by 5% in June. The new June price of the product increased by 5% on December 1st. How many dollars did the product increase by Dec 1. I don't have a clue! Can you please help 
pre calc
the hour hand of a clock is 5 inches long and the minute hand is 6 inches long. Determine the distance between the tips of the hand at 11:40 p.m. please help i don't understand how to do this. if you work it out this will help alot 
pre algebra help
An apple falls from a 28 foot tree. The height of the apple, in feet, after t seconds of falling, can be found using the polynomial 16t 2 + 28. Find the apple's height after 0.5 second. 
Pre ALgebra
If a pizza with a diameter of 12 inches costs $10.99, based on area, about how much should a 15inch pizza cost? (Hint: Be sure to use the area of the pizza in your proportion, not the diameter.) 
Precalsulus
a twinengine cessna is heading on bearing of 35 degrees with an air speed of 180 mph. if the wind is out with a bearing of 90 degrees at 40 mph, then what is the bearing of this course? what is the ground seed of the airplane? 
Pre Cal.
1. Use halfangle identity to find the exact value of cos165. MY ANSWER: (1/2)sqrt(2+sqrt(3)) 2. Solve 2 sin x + sqrt(3) < 0 for 0<= x<2pi. MY ANSWER: (4pi/3)< x < (5pi/3) 3.Write the equation 2x+ 3y5=0 in normal form? (2sqrt(13)/13)x  (3sqrt(13)/13)y + ... 
children's literature
With preschool children, a first step in engaging children in the reading process is to read stories in which characters are faced with a decision to be made and in which there is: A. no clearcut answer. B. no solution. C. a set of choices provided. D. an obvious solution. i... 
PreAP Physics
A flatbed truck is carrying a heavy crate. The coefficient of static friction between the crate and the bed of the truck is 0.47. What is the maximum rate at which the driver can slow and avoid having the crate slide against the cab of the truck? 
PreCalc
Workers are designing a TV receiving dish in the shape of a paraboloid of a revolution, the factory sent them a paraboloid that is ten feet across at the opening and three feet deep. What is the best place the receiver can be placed for the best reception? 
Pre Cal
An open box is formed from an 80cm by 80cm peice of metal by cutting four identical squares from the corners and folding up the sides. Express the volume of the box in terms of x. Then describe how you could find the maximum possible volume. 
PreCal(Please help)
Use synthetic division to show that x is a solution of the thirddegree polynomial equation, and use the result to factor the polynomial completely. List all the real zeros of the function. x^3  28x  48 = 0 Value of x = 4 Please help!!Thank you 
PreCalc/Trigonometry
You place a cup of 205oF coffee on a table in a room that is 72oF, and 10 minutes later, it is 195oF. Approximately how long will it be before the coffee is 180oF? Use Newton's law of cooling: 1 hour 25 minutes 15 minutes 45 minutes 
Chemistry PreAP
What volume of oxygen gas can be collected at 0.565 atm pressure and 48.0◦C when 42.9g of KClO3 decompose by heating, according to the following equation? 2 KClO3(s) ∆−−−−→2KCl(s) + 3O2(g) MnO2 
PreCalc.
You want to make an investment in a continuously compounding account over a period of 20 years. What interest rate is required for your investment to double in that time period? Round the logarithm value to the nearest hundredth and the answer to the nearest tenth. 
Precalc Math
A tree on a hillside casts a shadow c = 210 ft down the hill. If the angle of inclination of the hillside is b = 21° to the horizontal and the angle of elevation of the sun is a = 51°, find the height of the tree. (Round your answer to the nearest foot.) ________ft 
prealgebra
Justin wants to use 376 ft of fencing to fence off the greatest possible rectangular area for a garden. What dimensions should he use? What will be the area of the garden? A. 89 x 99; 8811 ft B. 92 x 96; 8832 ft C. 94 x 94; 8836 ft D. 93 x 95; 8835 ft thinking the answer is d... 
Calculus
Hi, I have a calculus question that I just cannot figure out, it is about volume of cross sections. I would very much appreciate it if someone could figure out the answer and show me all the steps. A solid has as its base the region bounded by the curves y = 2x^2 +2 and y = ... 
Calculus
Hi, I have a calculus question that I just cannot figure out, it is about volume of cross sections. I would very much appreciate it if someone could figure out the answer and show me all the steps. A solid has as its base the region bounded by the curves y = 2x^2 +2 and y = ... 
precalc
I'm terrible at pre calc, could someone tell me if the solution set for log subscript 2 x + log sub 2 (x1)=1 is the solution 1? Using either the elimination or substitution method is the solution set for 4x + y =11 and 2x y = 7 is the answer (3, 1)? Kudos! Yes. 
pre cal
A boat has passed directly over a submarine as pictured below. The sub is running at a depth of 588 ft, and the angle of depression from the boat to the sub is 35 degrees. Find the distance, x, from the boat to the submarine. 
pre algebra
Application of percent Alice earns a monthly salary of $315 plus a commission on her total sales. Last month her total sales were $9640, and she earned a total of $1182.60.What is her commission rate? 
Pre cal
From a point A is 8.20 meters above level ground,the angle of elevation of the top of a building is 31degrees 20 min and the angle of depression of the base of the building is 12degree 50 min. Approximate the heighth of the building 
PreAlgebra
Suppose you roll two number cubes and pick a letter of the alphabet at random. Find the probability you roll 2 even numbers and pick one of the vowels a, e, i, o, or u. A. 7/104 B. 5/104 C. 1/6 D. 1/104 
Trig/PreCalc
A bird is flying 30 mph in a direction 30 degrees south of east. Affecting the flight of the bird is a wind blowing from the northeast to the southwest at a speed of 10 mph. What is the resulting speed of the bird? 
Math Pre Algebra
Find the simple interest. $900 deposited at an interest rate of 3% for 5 years. $1,348 deposited at an interest rate of 2.5% for 18 months.