11/02/21

Find all solutions of the equation below. sin𝑥tan𝑥+sin𝑥 =0

Please help me with this problem. I am very lost :/

11/02/21

Find the exact value of the following given that sec𝛼 =5 and 270°<𝛼<360°. sin𝛼/2

Hello! Please can I have assistance with this problem! I am confused on where to start to what to do.

11/02/21

The position of an object in circular motion is modeled by the parametric equations x = 9 sin(2t) y = 9 cos(2t)

The position of an object in circular motion is modeled by the parametric equationsx = 9 sin(2t)    y = 9 cos(2t)where t is measured in seconds.(a) Describe the path of the object by stating the... more

y'' - xy' + 2y = cosx

Solve the following non-homogeneous ODE using a power series expansion centered at 0. Listing the first four nontrivial terms for y1 and y2.

Charlie is selling three different types of chocolate boxes:

Charlie is selling three different types of chocolate boxes: Price: $32 Price: $34 Price: $28Life is like a box of chocolates and Valentine's day is coming up. Charlie plans to offer a special... more

10/31/21

The population of the world in 1987 was 5 billion and the annual growth rate was estimated at 2 percent per year.

Assuming that the world population follows an exponential growth model, find the projected world population in 1996.

A tank contains 2960 L of pure water. Solution that contains 0.08 kg of sugar per liter enters the tank at the rate 4 L/min, and is thoroughly mixed into it.

A tank contains 2960 L of pure water. Solution that contains 0.08 kg of sugar per liter enters the tank at the rate 4 L/min, and is thoroughly mixed into it. The new solution drains out of the tank... more

10/25/21

How fast (km/h) is the dot moving when θ= π/5?

A laser pointer is placed on a platform that rotates at a rate of 5 revolutions per minute. The beam hits a wall 8km away, producing a dot of light that moves horizontally along the wall. Let θ be... more

Differential Equation

A 120-gallon tank initially contains 80 lbs. of salt dissolve in 90 gal of water. Brinecontaining 2lbs/gal of salt flows into the tank at the rate of 5 gal/min, and the mixtureflows out of the tank... more

Consider the differential equation y" − 2xy' + y = 0, y(0) = 0, y' (0) = 1. Assume a power series solution of the form

The Form ∞y =∑ anxn n=0Find the values of a5 and a7.

08/20/21

AMDM HOMEWORK HELP

A new cars salesperson sold an average of $58,841 per day for the first 3 days she worked. The next 1 day she worked, she sold an average of $54,748. How much did she sell on average per day over... more

Interval of convergence

Lets say you have a series ∑n=1∞ ((3x+2)^(n+1))/n^(5/2). What would the interval of convergence be?

05/04/21

Please help I am lost

A 1,800 kg car moving at 6.0 m/s is stopped by the action of its brakes. The work done by the car's brakes is ____ Joules.

05/04/21

sin(2x) = cos(3x)

what is the value of x??

05/03/21

Find the length and direction of the vector 2 i + (-2) j + (-2) k?

Put direction in vector form.

04/18/21

Rewrite in terms of the first power

Sin26x cos26x

04/18/21

Convert 2/5% to a decimal

04/12/21

Elementary math

A 38 foot length of wire is to be cut into 2 pieces, so that the longer piece is two feet longer than two times the shorter piece. Find the two lengths of each piece

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