02/03/16

the height of a bicycle pedal above ground after t seconds is given by h=24-14 sin 2t 1.find the height when t=0 2.find the maximum height of the pedal above gr
the height of a bicycle pedal above ground after t seconds is given by h=24-14 sin 2t 1.find the height when t=0 2.find the maximum height of the pedal above ground 3.find the first time at... more
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02/01/16

the concordia theatre contains 500 seats, and the ticket prices for a recent play were $43 for adults and $28 for children. For one sold-out matinee, if the tot
500 seats $43 adults $28 children total 16,805 how many of each ticket
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01/20/16

I need help setting up this equation and what percentages are percentages of? Thanks
Flowers tend to open in the daylight and close in the dark. The percent P of flowers open during a 24-hour period can be modeled by P(x) = a sin (bx) + d, where x is hours past 6 A.M. (a) Suppose... more
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01/19/16

X + Y = 10, X + Z = 20, Y + Z = 24, what is X + Y + Z = ?
X + Y = 10 X + Z = 20 Y + Z = 24 what is X + Y + Z = ?   Please provide the steps in deriving your answer. Thanks.
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01/18/16

express the side length of a square as a function of the length d of the square's diagonal. Then express the area as a function of the diagonal length
I understand the first part of the question. My answer to that was s= (d square root 2)/2. The trouble I'm having is with the second part. Thanks.
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01/18/16

Find an equation of the sphere that passes through the origin and whose center is (1,10,-5).
Find an equation of the sphere that passes through the origin and whose center is (1, 10, -5). Note that you must put everything on the left hand side of the equation and that we desire the... more
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01/17/16

Down below is the question... Can you please show work and answer thanks!
At 134 degrees celsius, the pressure of a sample of nitrogen is 1.15 atm. What will the pressure be at 243 degrees celsius, assuming constant volume? 
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01/17/16

Verify that (x^2)y+y^2 =c is a solution of 2xydx+(x^2+y)dy=0
Differential equations question
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01/13/16

Graphing Trig. Functions & Inverses
Evaluate In degrees:   1. Sin^-1 (-2pi)    2. arctan (- square root 3/3)   3. sin (cos^-1(- square root 3/2)      Evaluate in Radians   1. Arctan (-1)   2. cos^-1 (- 1/2) 
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01/13/16

Julia spends 5/9 of her money on a flan and two chicken pies. Each chicken pie costs 1/6 as much as the flan. Julia has $24 left.
How much does Julia spend? how much does the flan cost?   please do step by step calculations?
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01/06/16

A ball is thrown horizontally from the roof of a building 54 m tall and lands 35 m from the base. What was the ball's initial speed?
how would you solve this??
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01/06/16

it takes a plane 1/2 hour less to fly from phoenix to boston at 500 mph than it does to return at 450 mph. how far apart are these cities?
i need to find the distance of the two places
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01/06/16

If Z=x^3cos(y/x), find Zx and Zy. Hence Show that XZx + YZy=3Z
Also falls under Functions of two variables if i am not mistaken.
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01/05/16

Math homework help??
A vehicle owner wants to calculate the total cost of his 2007 Jeep Compass with a MSRP of $18,366. His monthly loan payment is $321.54 for 5 years after he puts down a $2000 down payment.†(a) Write... more
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01/04/16

Help! So confused! :(
can someone walk me through this?   suppose the coordinate (a,b) is in q4. describe the location of the following points. (b,a), (2a,-2b), and (-b, -a). explain your reasoning.
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01/04/16

physics homework problem on impulse
A punter drops a ball from rest vertically 1 meter down onto his foot. The ball leaves the foot with a speed of 18 m/s at an angle 55º above the horizontal. What is the impulse delivered by the... more
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01/03/16

Maths Trig identities
Exact value of Sin pi/12   I got this answer to be  (√6 - √2 )/4 (part a)   I then done the half angled identity to be  √(2 - √3)/2 (part b)   Both these expressions are equivalent and I need... more
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12/29/15

A model rocket is fired vertically upward from rest.
A model rocket is fired vertically upward from rest. Its acceleration for the first three seconds is a(t) = 60t at which time the fuel is exhausted and it becomes a freely "falling" body. Fourteen... more
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12/28/15

Two balls are thrown upward from the edge of a cliff 432 ft above the ground. The first is thrown with a speed of 48 ft/s and the other is thrown a second later
Two balls are thrown upward from the edge of a cliff 432 ft above the ground. The first is thrown with a speed of 48 ft/s and the other is thrown a second later with a speed of 24 ft/s. (a) Do the... more
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12/27/15

In the viewing rectangle [-4, 4] by [-20, 20], graph the function f(x) = x^3 - 3x and its secant line through the points (-3, -18) and (3, 18).
In the viewing rectangle [-4, 4] by [-20, 20], graph the function f(x) = x^3 - 3x and its secant line through the points (-3, -18) and (3, 18). Find the values of the numbers c that satisfy the... more
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12/27/15

Find the absolute minimum
When a foreign object lodged in the trachea (windpipe) forces a person to cough, the diaphragm thrusts upward causing an increase in pressure in the lungs. This is accompanied by a contraction of... more
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12/21/15

transformations
y=f(x) , y=g(x) f(x)=x^2 and g(x)=-x^2+6x-13 the graph of y=g(x) can be obtained by from the graph y=f(x) by first reflecting the graph of y=f(x) and then translating the graph of... more
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12/21/15

how long will it take for $500 to double if it is invested at 5% annual interest, compounded continously
Math problem how many years will it take to double the amount of the 500 how many? ??
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12/16/15

Find all values of ? in the interval [0°, 360°) that satisfy the equation. Use degree measure 3 sin ( ?) = cos ( ?)
The solution set is {-- --}. (Round to the nearest tenth as needed and use a comma to separate answers as needed)
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12/16/15

A 74.0 kg ice-skater standing on frictionless ice throws a 0.12 kg snowball horizontally at a speed of 27.0 m/s. At what speed does the skater move backwards?
Need work & answer please
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