12/13/18

Rancher Optimization

A rancher intends to mark off a rectangular plot of land that will have an area of 1500 m^2. The plot will be fenced and divided into two equal proportions by additional fence parallel by two... more

12/12/18

U sub instead of trig sub

indefinite integral of sqrt((4-x)/x) solve when u= sqrt(x/(4-x)) then your dx= 1/[(x1/2/(2(4-x)3/2)+(1/(2(4-x)1/2(x)1/2))]then you get integral 1/(u^2+1) with an 8 outside the integral signshow me... more

10/29/18

Calculus question

Use the equation y=3x^2 -4x-5 to answer the following questions.a.) Write the equation of the tangent line drawn to this curve at x=2. Answer in general form.b.) find the slope of the normal line... more

08/25/18

Calculating net torque

A man is pushing a shopping cart, horizontally exerting a force of 200 N , 0.15 m above his hip. The weight of his upper body is 250 N located 0.1 m in front of his hip. Assuming he is moving at... more

Calculate how much would need to be invested at 8% p.a. compounded each half year to accumulate to $9600 in six years

I need help with this compound interest question it’s working backwards and I don’t know how to do it and don’t know it’s formula

03/09/18

Precalculus

Find all angles which satisfy the following equation. (Use the parameter k as necessary to represent any integer. Enter your answers as a comma-separated list. If there is no solution, enter NO... more

03/09/18

Precalculus

Find all angles which satisfy the following equation. (Use the parameter k as necessary to represent any integer. Enter your answers as a comma-separated list. If there is no solution, enter NO... more

03/09/18

Precalculus

Find all angles which satisfy the following equation. (Use the parameter k as necessary to represent any integer. Enter your answers as a comma-separated list. If there is no solution, enter NO... more

03/09/18

csc theta=-6/5, tan theta>0

Use the given information to find the exact value of thr trigonometric function cos theta/2

03/09/18

word problems

THE LENGTHS OF THE THREE SIDES OF A TRIANGLE ARE X CM, (X+1) CM AND (X+2) CM RESPECTIVELY. FIND THE LENGTHS OF THE THREE SIDES IF THE PERIMETER OF THE TRIANGLE IS 135 CM.

Find the arc length of the curve on the given interval using calculus.

Find the arc length of the curve on the given interval using calculus.x=arcsint   y=ln(1-t2)1/20≤t≤1/2

04/19/16

cos^-1(cos16pi/5)

find the exact value of cos^-1(cos16pi/5). i do not understand how to derive from unit circle

04/19/16

How do i solve this?

Two rooms in a house are similarrectangles. Room A is 12 ft by 16 ft. "elonger side of Room B is 4 ft shorter thantwice the length of the shorter side ofRoom A. What are the dimensions of thesecond... more

12/29/15

Math Problem

Suppose f(12)=-4. Determine a point which must lie on the graph of the following : y=-3f(x+8)-5, y=1/2f(4/3x)

given line AB is congruent to line AE, line BC is congruent to line ED

 This is a proof. I need at least 3 steps please  

11/03/15

-16t2+63t+4

The height h of an arrow in feet is modeled by h(t)=-16t2+63t+4, where t is the time in seconds since the arrow the shot. What is the maximum height of the arrow and after how long in the air will... more

11/03/15

Find the absolute maximum and absolute minimum values of on the given interval : f(t) = t(4 - t^2), [-1, 2]

Find the absolute maximum and absolute minimum values of on the given interval : f(t) = t(4 - t2), [-1, 2]   I know I first need to find the y values for the endpoints:   f(-1) = 5 f(2) =... more

10/12/15

Differentiate f(x) = xe^x csc(x)

Differentiate f(x) = xe^x csc(x)

10/07/15

Calculus Homework

Suppose the cost of producing x widgets is C(x)=5000+40x−0.02x^2A. What is the cost of producing widget number 31? Your answer should be a single number. (Recall that C(x) is the cost of producing... more

decay type of question

under certain water conditions, the free chlorine in a swimming pool decomposes according to the law of uninhibited decay. after shocking his pool, Ben tested the water and found that the free... more

09/27/15

Word prolem

A candy distributor needs to mix a 10% fat-content chocolate with a 60% fat-content chocolate to create 100 kilograms of a 55% fat-content chocolate. How many kilograms of each kind of chocolate... more

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