# Posts by Danni

Total # Posts: 39

b. Explain why the initial value problem y'=4xsqrt(1-y^2) with y(0) = 4 does not have a solution. I already solved the differential equation and got y=sin(2x^2+C) I don't know what to do from there

math
please help! I've been trying to use my notes and the usual rule but I can't seem to get it.

calculus
3) The table below gives selected values for the function f(x). Use a trapezoidal estimation, with 6 trapezoids to approximate the value of int f(x) dx from 1 to 2 . Give 3 decimal places for your answer. x 1 1.1 1.2 1.5 1.7 1.9 2.0 f(x) 1 2 4 6 7 9 10

I've been trying to use the notes and past problems as a stepping stool to help me figure these out but I'm so lost. Especially number 4

1) Find the area of the region bounded by the curves y=arcsin (x/4), y = 0, and x = 4 obtained by integrating with respect to y. Your work must include the definite integral and the antiderivative. 2)Set up, but do not evaluate, the integral which gives the volume when the ...

math - calculus help!
I've looked at the related questions and it still doesn't make much sense to me :(

math - calculus help!
An inverted conical tank (with vertex down) is 14 feet across the top and 24 feet deep. If water is flowing in at a rate of 12 ft3/min, find the rate of change of the depth of the water when the water is 10 feet deep. 0.229 ft/min 0.449 ft/min 0.669 ft/min 0.778 ft/min 44.90 ...

According to equity theory, when workers perceive an inequity, they will A. always increase their efforts in the future. B. leave for a similar job in a different organization. C. try to reestablish an equitable feeling in a number of ways. D. generally be mistaken in their ...

health
How often should children and teenagers be physically active?

Algebra 2
What is the result when you decompose 2x^2-19x+50/(x+3)(x-2)^2 into partial fractions? To clarify, the entire first line is over the entire second line

Math
combine your equations: x+10+2x-30=250 then 3x-20=250 then 3x=270 then x=90 Ken weighs 90 and Joe weighs 150

geometry
find the coordinates of the points which are simultaneously 6 units from the points (6,6) and equidistant from the x and y axis. There are two ways to do this. I would like them both.

geometry
find the coordinates of the points which are simultaneously 6 units from the points (6,6) and equidistant from the x and y axis. There are two ways to do this. I would like them both.

trig

trig

HELP non linear equations
A company mixes peanuts, cashews, and almonds to obtain 22 oz package worth 6.91 dollars. If peanuts, cashews, and almonds cost 18, 45, and 50 cents per oz respectively, and the amount of cashews is equal to the amount of almonds, how much of each is in the package?

non linear equations
find all solutions of the system. y+x^2=-5x y-5x=25

physics
0.30-kg block is sliding on a smooth horizontal surface at 2.5 m/s, heading towards a light spring that is in equilibrium (not stretched or compressed). The spring constant is 3000 N/m. What is the total kinetic energy in the system in Joules?

physics
when the shuttle bus comes to a sudden stop to avoid hitting a dog, it decelerates uniformly at 4.7m/s as it slows from 8.7 m/s to 0 m/s. find the time interval of acceleration for the bus

phy
Your instructor asks you to compare positive and negative reinforcement and explain your conclusions in class. What will you report?

Math
A mall has three department stores, J C Penney, Macy’s, and Sears. A survey of 1863 people exiting the mall found that 279 made a purchase at J C Penney, 240 made a purchase at Macy’s, 364 made a purchase at Sears, 76 made a purchase at J C Penney and Macy’s, ...

Math
Draw a number line. Make sure the following numbers are on your number line: 1,472; 1,560; 1,481.

algebra
if 2/y+2=-3?y-3,then what is the value of y?

#2 chemistry
2CO(g) + O2(g) ==> 2CO2(g) A. If 16.01 L of oxygen is reacted at STP, how many moles of carbon dioxide is produced? B. If 1.722 mol of carbon monoxide is reacted at STP, what volume of carbon dioxide is produced? C. At STP, what volume of oxygen is needed to produce 82.1 g ...

N2(g) + 3H2(g) ==> 2NH3(g) A. If 16.99 g of hydrogen is reacted at STP, volume of ammonia is produced? B. If 35.82 L of nitrogen is reacted at STP, what mass of hydrogen must also be reacted? C. At STP, what volume of hydrogen is needed to produce 70.9 L of ammonia; D. What...

algebra 2
Write a polynomial function that has the zeros 2, -2, and -1 and has a leading coefficient of 1. Then graph the function to show that 2, -2, and -1 are solutions.

algebra
A population of wolves in a county is represented by the equation P(t) = 80(0.98)^t, where t is the number of years since 1998. Predict the number of wolves in the population in the year 2008.

social studies
without our two great political parties cutting across economic and goegraphic intrests, democracy as we know it could never have been made to function. the author of this statement probably meant to suggest what?

English
there is verisimilitude in the story and i think the story is about the thought of machines developing souls and thoguhts of there own ...

math ws
i have same worksheet so confused

Humanities
I need the name of a 20th century figure whose work/artistic contributions can be classified in both the age of modernism and the age of pluralism

science
what is a chemical change?

Science
what happens when a candle is alight?

What are groups of occupations arranged by sector of the economy? I'm doing a cross-word thing, so it starts with "C".

chemistry
determine the number of grams of NH3 produced by the reaction of 3.5g of hydrogen gas. 1. Write the equation and balance it. N2 + 3H2 ==> 2NH3 2. Convert 3.5 g H2 gas to mols. mols = grams/molar mass. 3. Convert mols H2 gas to mols NH3 using the equation from step 1. 4. ...

Chemistry
What would be concept in which you would have to use electron configurations in order to solve? and how would you determine the answer? One uses the electron configuration to solve the bonding preferences and energies.

the big idea of energy
sammeeeeeeeee!!!! wtf is the big idea of energy???!!!

science
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science
when a physical change happens, it is visible

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