marsha

This page lists questions and answers that were posted by visitors named marsha.

Questions

The following questions were asked by visitors named marsha.

evaluate the integral: y lny dy i know it's integration by parts but i get confused once you have to do it the second time Leibnitz rule (a.k.a. product rule): d(fg) = f dg + g df y lny dy = d[y^2/2 ln(y)] - y/2 dy ----> Integral of y lny dy = y^2/2 ln(y)...

also: integral of tan^(-1)y dy how is integration of parts used in that? You write: arctan(y)dy = d[y arctan(y)] - y d[arctan(y)] Here we again have used the product rule: d(fg) = f dg + g df You then use that: d[arctan(y)] = 1/(1+y^2) dy So, the integral...

if you evaluate the integral of: t csc^2 t dt, is the answer -t cot t + ln|sint| + C Differentiate the answer to see if it is correct.

calculate the exact value of 4 1/5 - (1 1/9 * 3)is it=39/45

how do i simplify x^2*x^3/x^4

if you hold a thermometer in each hand, one farenheit and one celsius, and they read the same. What do they read?

Could someone give feedback on my expository essay? The concerns is the thesis, intro, conclusion and citations of the paper. Systemic Lupus Erythematosus (Lupus) Many years ago, my mother was diagnosed with Systemic Lupus Erythematosus. Every day since t...

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A heliox deep-sea diving mixture contains 2.0 g of oxygen to every 98.0 g of helium. What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 8.0 atm? This is a new chapter were covering and i have no idea how to do thi...

jackie is 8 years younger than her neighbor Paula. the sum of their ages is 30. how old are jackie and paula?

There are twice as many girls as boys in the 4th grade classes at Joe's school. There are a total of 81 4th graders. How many boys and girls are there in the 4th?

A charge of +3c is located 50cm from a charge of -6c A what is the magnitude of the force exerted on each charge? B on a drwing indicate the directioon of the forces acting on each charge

200 coins are sorted and kept 3 bags. The first bag has 20 more coins than the second bag. The second bag has twice as many coins as the third bag. How many coins are there in the third bag?

a dictionary and a calculator cost $80. If the calculator cost $20 more than the dictionary, find the cost of the dictionary.

solve the problem the national debt is $$44,280,000,000 and the population is 4,920,000.what is the debt per person

What fraction could be used to express 2 parts that equal 15/17?

If ms smith class read for 450hrs this month. Ms Brown class read two-thirds the number of hrs read by ms smith class. Ms James class read twice the hrs read by ms brown class. There are 90 students in these 3 classrooms. What was the average number of hr...

gina ate 1/6 of an apple pie. Greg ate 1/2 of the same apple pie. how much of the apple pie was left

So far John has run 1/4 of the way to school and walked 3/8 of the way. what fraction of the distance to school does John have left.

Thank you every much. Have a great night.

if we are testing for the difference between two populations, it is assumed that the two populations are approximately normal and have equal variances, true or false

for a hypothesis comparing two population means, what is the critical value for a one-tailed hypothesis test, using a 5percent level of significance level, with both sample sizes equal to 13? the standard deviations for the samples are 5 and 7. assume the...

If i put 75,000 in a trust fund how much would i have in 8 years

show me a final draft literary analysis of ramayana

Answers

The following answers were posted by visitors named marsha.

I need help with a chemistry problem. Here it is A quantity of gas has a volume of 14L at STP. What is the volume (in L) at 9.7 atm and 94 C? Can you help me set up the equation?

That was what I was leaning toward, I just needed to see if someone else thought the same. Thanks

THe pH at equivalence point is always 7

(1.31)V=(0.61)(464)?

abrazame muy fuerte - hold me tightly embrace me tightly

technically yes it is algebra, its just the second level of it.

Triangle ABC is dilated by a factor of 2 with the center of dilation at the origin to form triangle A′B′C′. What are the coordinates of triangle A′B′C′? Question options:

an easy topic for maths sba