# Janna

Popular questions and responses by Janna
1. ## Calculus

Find the first 5 partial sums of the series ∑n=2 to ∞ 1/(n(n+4))? I got 1/12 for the first one but when I put 1/21 for the next one it says it's wrong please help

2. ## Math

Angela is twice as old as clara. Seven years ago, the sum of their ages was 16. How old is clara now?

How would I find out how many people own dogs in Canada? I have an idea for my business marketing report but need to check the facts first.

4. ## Calculus

A cylinder shaped can needs to be constructed to hold 200 cubic centimeters of soup. The material for the sides of the can costs 0.02 cents per square centimeter. The material for the top and bottom of the can need to be thicker, and costs 0.05 cents per

5. ## Algebra

After 6 years, an account that earns 4% simple interest has earned \$480 in interest. How much was the initial deposit?

6. ## Math

Helen calculated that she paid \$1.50 per 100g for the usable part of the fish. How did Helen calculate \$1.50?

7. ## Calculus

Determine the remainder for Sn where n=5 or n=9 for the following series. ∑n=1 to ∞ (n^2+1)/(n^4) S5= R5= S9= R9=

8. ## Chemistry

predict if precipitation will occur when 36ml of 0.0039M Na2CrO4 is mixed with 18ml of 0.00033M AgNO3. M.W of Ag2CrO4 :331.73g/mol Kspof ag2cro4 1.1x10^-12

9. ## english

can you give me a noting details story

10. ## Math

The mass of Saturn is about 100 times the mass of Earth which is 5.97 x10^23 kg. How heavy is Saturn?

11. ## Science

What are the independent and dependent variables in the following----- The Effect of Magnet Status on the Perception of Autonomy Among Charge Nurses in a Skilled Nursing Facility as Compared to an Acute Care Facility?

12. ## Chemistry 111

The heat of fusion for a solid is .825kJ/mole. the formula weight of the solid is 150.24. How many grams of this solid can be melted by 305J of energy?

13. ## Economics

President George Bush maintained a “hands-off” policy during the 1990-1991 recession. How did he expect the economy to recover?

15. ## social studies

what does a charter and a joint-stock company have in common? a pilgrim and the mayflower compact?

16. ## math

what is and line plot?

17. ## science

Which term is used to indicate the region where no earthquake waves reach Eath's surface?

18. ## Science

Which instrument records seismic ways from a earthquake?

19. ## science

Why is visible light arranged into colors in order: red, orange, yellow, gree, blue, indigo, and violet?

20. ## art history

I need to find an article on Gothic art and spirituality...any suggestions?

21. ## Grammar

For an APA paper, the title I have chosen is Art Through the Ages. Should the word "through" be in caps?

22. ## Art History

I am having difficulty finding information on Chinese art that was controlled by the government. Any suggestions?

23. ## math

how do you find the slope and y-intercept of 9x-2y=-6 put the equation in the form y = mx + b m is the slope (0,b) is the y intercept

24. ## math

Not sure about this... Need to solve by substitution 8x - 4y = 16 y = 2x -4 Substitute 2x -4 for y in the first equation and solve the resulting equation for x. 8x - 4(2x-4) = 16 16 = 16 The two equations are not independent. One can be derived fron the

25. ## Chemistry

A(g) + B(g) AB(g) At a given temperature 1.0 mole of A and 1.0 mole of B are placed in the 1.0 litre vessel and allowed to reach equilibrium. Analysis revealed that the equilibrium concenration of AB was 0.40 molar. What percent of A had been converted to

26. ## Chemistry

X2 + Y2 2XY 0.50 mole each of X2 and Y2 are placed in a 1.0 litre vessel and allowed to reach equilibrium at a given temperature. The equilibrium concentrations of XY is found to be 0.025 mol/L. What is the equilibrium cosntant for this reaction? Do I just

27. ## Chemistry

Why is it important to determine the wavelength of maximum absorption? I assume we are talking spectroscopy here? When describing the spectrum it is usual to record the wavelength of a maximum absorption (there may be several absorptions) as this is a

1. ## math

Well I just rounded my rounded and chose a product

posted on October 17, 2017
2. ## science

diffraction

posted on January 17, 2017
3. ## ama

dθ/dt = sqrt(3)/3

posted on May 15, 2016
4. ## S.S.

Jordan, what about the mountains? They are sharp, right? And Jordan, I think you should start something called, STUDYING.

posted on January 13, 2014
5. ## math asap

4(7+a)-3 (4a+28)-3 4a+25 10+3(1+p) (3p+3)+10 3p+3+10 3p+13

posted on January 15, 2013
6. ## algebra 1 page 167 did you hear about...

Does any one know the answer to the one about the cannibals who got "fed up"?

posted on January 5, 2011
7. ## Calculus

Find an equation of the tangent to the curve of y1, given below is the parallel to the given y2. y1=4x times the square root of x y2=2+6x

posted on October 5, 2010
8. ## social studies

i mean, the joint-stock company ant the charter were both granted by the king? and i don't understand the second pair Please help!

posted on November 5, 2008
9. ## social studies

the joint-stock company ant the charter were both granted by the king? I don't get the second part Am I right?

posted on November 5, 2008

sorry...I just now saw the links...

posted on September 27, 2007

Thank you. Where did the original data come from in case I need more current information?

posted on September 27, 2007
12. ## Grammar

Thank you. I will copy this for a reference. Appreciate you shedding some light on this simple but important rule.

posted on September 23, 2007
13. ## Grammar

Thank you. I wasn't sure because "Word" kept signifying that it should be in lower caps.

posted on September 23, 2007