# calculas

165 results

**calculas**

If f(x)=3x-1 and g(x)=2/3x+2 find: a) f(-3)+g(6) b)f(3)-g(2)

**ap calculas**

derivative of (-x^3+3)(3x+2)^3

**Calculas**

(6x^3-8x^2-6x)/(3-11x-8x^3)

**calculas**

how to find the x intercepts for f(x) = 3x^3+7x^2+3x+1

**calculas**

f(x)=ln[(1+e^2x)/(e^2x-4) find the derivative

**pre -calculas**

No answer.

**ap calculas**

derivative of (2x^3+5)cos2x^5

**calculas**

If f(t) = square root of 7/t^5. Find f'(x) and f'(2)

**Calculas**

Find the length of the curve y=ã(2x), from x=1 to x=4.

**pre-calculas**

Can someone please help me?

**Calculas**

area between the curves y=4-x^2 and y=x-8

**Calculas**

Evaluate the definite integral. S4 (-3x+4) dx 1

**Calculas**

Horizantal limit of (6x^3-8x^2-6x)/(3-11x-8x^3)

**AP Calculas**

Does f(x)=(2x^3-2x)/x^3+x^2-4x-4 have any horizontal asymptotes? How can you tell?

**Calculas**

find the compute derivative of f(x)=sinh^2(5x)

**pre-calculas**

rationalize the denominator: 5 + the sq. rt. of 3 ________________________ 4 + the sq. rt. of 3

**calculas**

Please help don't understand how to solve it. 3xy-6x+2y^2 dx/dt=-6 x=2 y=-3 thank you

**Calculas**

how to find the x intercepts for f(x) = 3x^3+7x^2+3x+1 please show your steps

**calculas**

The function f(x)= (8x-7)e^2x has one critical number. Find it

**CALCULAS**

POLAR EQUATION OF INWARDLY SPIRALING SPIRAL

**Pre Calculas**

verify the following 1+1/csc^2x-1=sec^2x

**calculas**

let p=(1,1,1), Q=(2,3 5), and R=(-1,3,1). find the area A of thr triangle with vertices P,Q, and R

**calculas**

Solve following equations ¡¼tan¡½^(2 ) x-5tanx=-6

**Calculas**

Integrate: Cos^7(2x) Explanation would be helpful

**calculas**

Differentiate the explict funtion of 9x^2 + 64y^2 = 576

**Calculas**

F(X)=9 csc6(X) it is continous from -infity to infinity except what value?

**calculas**

Write following equations in polar coordinate then graph them Y=4X

**Calculas**

Find the area of the region under the curve y = 12 e ^{3 x} between x = -2.6 to x =2.6

**Calculas**

W= [ a , a+b ] (2x2 matrix) a-b , b a, b are element of R Show that W is a Subspace of M22?

**Calculas**

lim (x⁻¹-1)⁄x-1 as x approaches 1. I know the answer is -1 but I am not sure how to solve the numerator x⁻¹-1.

**Calculas**

Compute the absolute and relative errors in using c to approximate x. x=e; c=2.74

**calculas**

Question # 01 Solve the inequality and sketch the solution on a coordinate line.

**Calculas**

I stumble a question I cannot answer please help up. Find value of limit k for equation:

**pre-calculas**

Use "completing the square" to find the zeros of the polynomial. =2x squared + 6x + 5 = 0

**Calculas**

find the tangent line of the following function Y=2sinx + sinx^2 at the points Pi/6,5/4

**pre-calculas**

find the LCD and solve: x+3 12x + 4 1 - 2x ____ + _________ = _______ 3-x x squared - 9 x + 3

**Pre Calculas**

Need help Give an example of an exponential function that goes through the point (0,4) .

**Calculas-Differentiation**

The gradient of the tangent to a curve y=ax^2+bx at the point (2,8)is the parallel to x-axis. Find the values of a and b.

**Calculas**

Use the derivative of sinx and cosx to develop the derivatives of y=secx and y=tanx? Help would be much appreciated

**calculas**

Find the volume of the solid that is obtained when the region under the curve y=©ø¡îx+3 over the interval [5, 24] is revolved about x-axis.

**math- 165 calculas**

Find the horizontal asymptote of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = 5x^2 + 1/ 7x^3 − 2x^2 + 5

**Calculas**

Find any critical numbers of the function. (Enter your answers as a comma-separated list.) g(t) = t sqrt6 − t , t < 13/3 I don't even know how to start out!

**maths calculas part**

A man who has 144m of fencing material wishes to enclose a rectangular garden.Find the maximum area he encloses

**Applied calculas**

Let y=〖tan〗^(-1) x Rewrite it as an equation involving a trig function. Use implicit differentiation to determine an expression for y.

**calculas**

Find the equations for the tangent line and normal line to the curve for f(x)=(x^4)+(2e^x) at the point (0,2)?

**Math ( calculas)**

find the intervals on which the curve y=x/(x+1)^2 is concave upward or concave downward.

**Pre Calculas**

how would you varify the following sinx+sinx cot^2x=cscx

**pre-calculas**

what is the function whose graph is the graph of y=ã+4, but is reflected about the the x-axis. y=

**calculas**

Consider the function f(x) = 7 xe^{-7.5 x}, 0<_x<_2. This function has an absolute minimum value equal to: which is attained at x=

**Calculas**

Can someone walk me through the following questions: Partial Derivatives f(x,y) = x^7 -8y -3 find x and y f(x,y) = 7 / 5x + 4y, find x and y

**pre-calculas**

write a function whose graph is the graph of y=x^2, but is shifted to the left 6 units.

**Calculas**

what is the velocity (in ft/s) of a sandbag 2.75 s after it is released from a hot-air balloon that is stationary in the air?

**pre-calculas**

simplify the following complex fraction: x ____ -2 x-5 _____________________________________ x squared - 9x - 10 ____________________ x squared - 25

**Calculas**

The slope of the tangent line to the graph of a function, h(t) is 7/2t The function passes through the point (5,3) Find h(4)

**Calculas-Differentiation**

Find the equation of the tangent to the curve y=1/2x^2-4x-3at the point where the curve intersects the y-axis.

**Calculas**

Evaluate lim x→0 10x/√(9+x)-√(9-x)

**calculas**

Let f(x) = 1+3sin2x be a function, determin the amplitude and the period of the function,

**calculas**

Let f(x) = 1+3sin2x be a function, determin the amplitude and the period of the function,

**calculas**

Let f(x) = 1+3sin2x be a function, determin the amplitude and the period of the function,

**differential calculas**

Find the instantaneous velocity and acceleration at the given time for the straight-line motion described by the equation: s= (t+2)^4- (t+2)^(-2) at t=1 Round to one decimal place.

**Calculas**

Can someone please walk me through the steps for the following Partial derivatives problems: f(x,y) = x^7 - 8y - 3, find x and y f(x,y) = 7 / 5x+4y, find x and y

**high school calculas**

Find the (a) the local extrema, (b) the intervals on which the function is increasing, (c) the interval on which the function is decreasing h(x)=2/x

**Calculas**

I stumble a question I cannot answer please help up. Find value of lower and upper limit of k for equation: (3x^3-5)/x^2 dx = 10 limit: -k , k

**Calculas**

Given f(x)=x^3−2x+5/x+4 and f′(3)=a/b, where a and b are coprime positive integers, what is the value of a+b? Details and assumptions f′(x) denotes the derivative of f(x).

**calculas**

Suppose that the box height is h = 2 in. and that it is constructed using 193 \text{in.}^2 of cardboard (i.e., AB = 193). Which values A and B maximize the volume?

**math- 165 calculas**

Find the horizontal asymptote of the graph of the function. (If an answer does not exist, enter DNE.) f(x) = x^3 − 3x^2 + 5x + 1/ x^2 − 5x + 3

**Pre-Calculas**

I a lighthouse is 75 feet tall and boat is out at sea 40 min away, how far is the boaat from the lighthouse. I'm stump on this problem..Help!

**calculas,math**

A cylindrical can is made from tin.If it can be contain liquid inside it then what is the parameter of design if we are oblige use the minimum amount of tin.

**Pre Calculas**

A man who can row in still water at 3 mph heads directly across a river flowing at 7 mph. At what speed does he drift downstream?

**calculas 1**

Find the value(s) of c guaranteed by the Mean Value Theorem for Integrals for the function over the given interval. (Enter your answers as a comma-separated list.) f(x) = x^9, [0, 9]

**differential calculas**

The angular displacement in radians is given by: θ=8√(t^2+2) Find the angular velocity and angular acceleration at t = 0.25 s

**Calculas**

Johnny is designing a rectangular poster to contain 15 in^2 of printing with a 5-in margin at the top and bottom and a 3-in margin at each side. What overall dimensions will minimize the amount of paper used?

**Pre Calculas**

Im having a little trouble help please? 1.Given the table below, evaluate the following: x -3 -2 -1 0 1 2 3 4 5 f(x) 10 20 30 40 50 60 70 80 90 g(x) -1 -2 -3 -4 -5 -6 -7 -8 -9 a. (3f+2g(1) b. (fog)(-1) 2. Express the following function, H(x) as a composition of two functions f...

**Calculas**

Suppose that the radius r of a right circular cone of fixed height h = 30 cm is increasing at a rate 10 cm/s. How fast is the volume increasing when r = 15? Give your answer correct to two decimal places.

**calculas**

A car braked at a constant deceleration of 45 ft / s2, producing a skid mark measuring 105 feet before coming to a stop. How fast was the car travelling when the brakes were first applied?

**Calculas**

The profit obtained when x barbecues are sold is P(x) = 100 x − 3x^2 (lnx) dollars . Find the marginal profit when 4 are sold.

**Calculas**

Write the equation for a line in point slope form and in slope intercept form parallel to 3x-4y=12 and passes through (8,3).

**calculas**

if the length is decreasing at a rate of 2 in./min. while width is increasing at a rate of 2 in./min., what must be true about area of the rectangle

**Calculas-Differentiation**

Find the coordinates of a point on the curve y=6-x^2 at which the tangent of the curve at the point is perpendicular to the line y=1/4x+1.

**Calculas**

Do I just put in 3 for t? A ball is dropped from a tower 550 meters above the ground with position function s(t) = 4.9t^2 + 550. What is the velocity of the ball after 3 seconds?

**Pre-calculas Math**

how to find the exact value of: cos(9*pi/12)*cos(5*pi/12)+sin(9*pi/12)*sin(5*pi/12)

**calculas**

airplanes fly from left to right along the path y=1+(1/x)and can shoot their bullets in the tangent direction at creatures placed along the x-axis at x=1,2,3,4 and 5.determine whether a creature will be hit if the player shoots when the plane is at p(1,2)

**Calculas HS**

a trucker handed in a ticket at the toll booth showing that in 2hours she had covered 159 mi on a toll road with speed limit 65mph. the trucker was cited for speeding. why?

**calculas**

consider the following. Function y = cos 3x point (pi/4, -square root of 2/2) (a) Find an equation of the tangent line to the graph of f at the given point. (Let x be the independent variable and y be the dependent variable.)

**Calculas HS**

show that the solution has exactly one solution in the interval x+ln(x+1)=0, 0<and equal to x <and equal to 3

**pre-calculas**

Find the function that is finally graphed after following transformations are applied to the graph of y=ãx in the order list 1. shift down 8 units 2. reflect the x-axis 3. reflect the y-axis

**pre-calculas**

Find the slant asymptote, if any, of the rational function. Do not graph the function. (Enter your answers as a comma-separated list of equations. If an answer does not exist, enter DNE.) f(x) = x2 − 2x + 15 _____________ x + 7

**calculas**

find the perimeter of the rectangle with maximum area that can be inscribed in a semicircle of radius 2 ft. if two of its vertices are on the diameter of the semicircle and the other two are on the semicircle.

**differential calculas**

A rocket fired at 275 m/s at 36o angle of elevation is described by: x= (275cos〖36〗^0 )t and y= (275sin〖36〗^o )t-4.9t^2 Find the velocity (magnitude and direction) at t = 8 s. Round to 1 decimal place.

**Calculas-Differentiation**

The area,Acm^2, of a blot of ink is growing such that after t seconds,it is given by A=3t^2+1/5t. Find the rate at which the area is changing after 2 seconds.

**calculas**

caluclas (intersection of three planes) HELP!!!? in the equations k is a real number 1.x-2y+z=4 2.x-y-z=3 3.x+y+kz=1 for what values of k does the system 1.have exactly one solution? 2.have an in finite number of solution?

**Calculas**

an open box is to be made from a square piece of cardboard whose sides are 19 inches long,by cutting squares of equal size from the corners and bending up the sides. Determine the size of the aquare that is to be cut out so that the volume may be a maximum.

**calculas**

x and y are both variables that are differentiable with respect to t, but not to each other. however, there is a relationship between them: x^2=3y^2+7. we also know that x changes with respect to t at a steady rate of square root of 12 (dx/dt=x'= square root 12). when x is 4 ...

**calculas**

2) A ball is hit at an angle of 36 degrees to the horizontal from 14 feet above the ground. If it hits the ground 26 feet away (in horizontal distance), what was the initial velocity? Assume there is no air resistance.

**Pre Calculas**

If you deposit $5,000 in an account that pays 5% interest compounded annually, how much money will you have in your account at the end of 15 years? Write an exponential function that represents this situation. I got 1,500,000 but im not sure if i did it right and im stuck

**Limit Calculas**

Evaluate lim->4 sin(2y)/tan(5y) Here is what I have so far. I am not sure the next steps. Can someone help me? 1. sin(2y)/(sin(5y)*cos(5y)) 2. (sin(2y)*cos(5y))/sin(5y)

**Pre-Calculas**

The voltage E of an alternating current electrical circuit can be represented by the sinusoidal function E = 220 cos( t), where E is the measured in volts and t is measured in seconds. How long does it take the alternating current to complete one full cycle?

**differential calculas**

A point moves along the curve that has the parametric equations: x=9t^3- 〖6t〗^2 and y= 〖9t〗^3+27 x and y being in yards and t being in minutes. Find the magnitude and direction of the acceleration when t= 5/2. Round answers to 3 significant figures.

**Pre Calculas**

True or false (logx)^2=2logx True or false in56/in7=in8 i got true for the first one and false on the second im sorry for posting today but i just need someone to check

**calculas**

If sin theta equals two third and zero degrees less than theta less than 90 degrees find cosine theta