Saturday
December 20, 2014

Posts by Mike


Total # Posts: 3,232

chem
If 0.208g of an unknown salt of oxalate ion requires 25mL of 0.02 M MnO4^- solution, calculate the molar mass and write the molecular formula of the unknown ( oxalare is the anion, what is the cation?).
April 8, 2012

Java
Write a program that will compute the paychecks for a small business. The business owner would like to be able to enter in an employee name, pay rate, and number of hours worked. The owner would like be able to specify the number of employees, and after all have been entered, ...
April 7, 2012

Math
Kaity draws a scalene triangle. Two sides measure 5 inches and 3 inches? Can the third side measure 3 inches? Why or why not?
April 6, 2012

AP CHEMISTRY
A voltaic cell is constructed that uses the following half-cell reactions. Cu+(aq) + e− -> Cu(s) I2(s) + 2 e− -> 2 I−(aq) The cell is operated at 298 K with [Cu+ ] = 2.7 M and [I− ] = 2.7 M. (a) Determine E for the cell at these concentrations. (b...
April 6, 2012

Pre-Calc Helppp!!!
Find the indicated angle è. (Use either the Law of Sines or the Law of Cosines, as appropriate. Assume a = 110 and c = 136 (angle B=38) Round your answer to two decimal places.)
April 5, 2012

Statistics
Data from the latest census was analyzed. It was determined that one-parent households spend less on food away from home that do two-parent households. The mean amount spent by 30 one-parent households is $1876 and the standard deviation is $113. The mean amount spent by 30 ...
April 4, 2012

Pre-Calc
For the triangle shown, find the length AD. (Assume u = 18, v = 18, x = 10°, and y = 10°. Round your answer to two decimal places.) Show work please!!!
April 2, 2012

statistics
The U.S. Department of Agriculture claims that the mean consumption of coffee by the person in the United States is 24.2 gallons per year. A random sample of 120 people in the United States shows that the mean coffee consumption is 23.5 gallons per year with a standard ...
April 2, 2012

physics
no it would be false
April 2, 2012

physics
if a race cars velocity increases from 4 m/s to 36 m/s over a 4 s time interval, it average acceleration would be 10 m/s2.
April 2, 2012

physics
what is the average velocity of the car from 0.0s to 40.0 s
April 2, 2012

finance
Weighted Average Cost of Capital)As a member of the Finance Department of Ranch Manufacturing, your supervisor has asked you to compute the appropriate discount rate to use when evaluating the purchase of new packaging equipment for the plant. Under the assumption that the ...
March 31, 2012

macroeconomics
explin the inner and outer flows of an open system
March 29, 2012

Math
Points A and B are noted on the straight line y=2x+4.If the distance between them is 5,what is the difference between their y-coordinates?
March 29, 2012

social science
Professor Koo examined the literature on AIDS and could find nothing that examined children’s attitudes toward parents and friends with AIDS. To examine this study, Dooley should undertake a(n) a. examination of reductionism b. descriptive study c. explanatory study d. ...
March 28, 2012

Transistion to College Math
A rifle bullet is fired vertically with initial speed 490 m/s. how long does it take the bullet to reach its greatest height?
March 28, 2012

computers
I need some help with creating a simple, but automatic site status (uptime/downtime) monitor script in ColdFusion. Basically I would like the script to check if an application on my site is accessible or not every 60 minutes. If the application is down at 60 minutes, then I am...
March 26, 2012

physics
What would the equation for the drag force the ball experiences while it is moving upward at constant velocity be?
March 24, 2012

math
Simplify. (-3u)^5
March 21, 2012

algebra
how do i solve 10x+10 over 3x-6 divided by 2x+2 over 3xy-6y
March 19, 2012

physics
A 4.00-m length of light nylon cord is wound around a uniform cylindrical spool of radius 0.500 m and mass 1.00 kg. The spool is mounted on a frictionless axle and is initially at rest. The cord is pulled from the spool with a constant acceleration of magnitude 2.86 m/s2. (a) ...
March 19, 2012

statistics
The mean life of a set of batteries in a T83 calculator is 525 with a standard deviation of 35 hours assume normal distribution is normal whats is the probability that set will last for more the 540 hrs
March 17, 2012

Chemistry
Calculate the pH after 0.011 mol NaOH is added to 1.00 L of each of the four solutions. a) 0.100 M propanoic acid (HC3H5O2, Ka= 1.3 10-5) b) 0.100 M sodium propanoate (NaC3H5O2) c)pure H2O d) 0.100 M HC3H5O2 and 0.100 M NaC3H5O2
March 15, 2012

Safety
Please help me to unscramble these 40 letters into 2 sentences that has 12 words. A A A A E E E E E E E I I I I O O U U C D F J K L L L N N N P P R S T T T T T Y . The puzzle includes some letters as follows:(use blanks from above) _ _ / _ _ f _ _ _ /_ s / _ / _ _ _ _ , / _ h ...
March 15, 2012

algebra
5x + 5 = .2x + 29. I know x is 5 but what are the steps to get there?
March 13, 2012

Algebra
9 inches.
March 12, 2012

algebra
The Environmental Protection Agency (EPA) monitors air quality in U.S. cities. The function f gives the annual number of days with unhealthy air quality in Los Angeles, California, for selected years. X: 1995 1997 1999 2000 2003 f(x):113 60 56 87 88 (a) Find F(1995)and ...
March 11, 2012

Statistics
0.06
March 10, 2012

HELP! College Physics
check the related questions. The one with the 6.8m/s
March 10, 2012

math
check the related questions below
March 10, 2012

chemistry
How do I write these compounds in their "true form" or Ionic State? NaCl, CuSO4, NH4OH How do i find the charges?
March 8, 2012

physics
At a playground, a 19.8 kg child plays on a slide that drops through a height of 2.13 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -319 J on the child. What is the child's speed at the bottom of the slide?
March 8, 2012

physics
At a playground, a 19.8 kg child plays on a slide that drops through a height of 2.13 m. The child starts at rest at the top of the slide. On the way down, the slide does a nonconservative work of -319 J on the child. What is the child's speed at the bottom of the slide?
March 8, 2012

math
THINK ITS addition of an odd number like 1+3=4 2+5=7 3+7=10 4+9=13
March 8, 2012

math
PROBABLY 3,000,000 / 5
March 8, 2012

AP CHEMISTRY
ITS a college class in high school. Im takin it in grade 12
March 8, 2012

Chemistry
I THINK ITS 1) The balanced equation is NaHCO3(s) + H+(aq)= Na+(aq) + CO2(g) + H2O(aq). Remember acid + base = salt + water. 2) 2 CaO(s) + 5 C(s) = 2 CaC2(s) + CO2(g) 3)C(s)+H2O(g)=>CO(g)+H2(g 4) CuO (s) + CO (g) Cu (s) + CO2 (g) I THINK THEY ARE RIGHT. CHECK WITH SOMEONE ...
March 8, 2012

physical science
assuming that there are no other nonconservative forces involved what was given to each car during the collision
March 7, 2012

physical science
what was the kinetic energy of each car before breaking
March 7, 2012

algebra
x^+6x+9 using the diamond and generic rectangle
March 6, 2012

Chemistry
probably right
March 6, 2012

math 208
you equation is supposed to be -8n -8 = 4 -8n=12 n=-1.5
March 6, 2012

math 208
the top answer i gave is wrng i think
March 6, 2012

math 208
aint it: -4-2n+2=4 -2n-2=4 -2n=6 n=-3
March 6, 2012

algebra
grandma ploan to finance her grandchilds college education she has 50,000 to invest use a long range investment pln ,cd,saving bond etc. the plan is to earn compound interest.the principal is(p)50,000 interest rate is (r)3.60years for investment is(6)this is time state number ...
March 5, 2012

Jiskha
wow helpin people just for free NICEEE
March 3, 2012

Jiskha
THAnX 4 tellin me!!
March 3, 2012

Jiskha
U guys answr evry question??????
March 3, 2012

Chemisty
THINK IT"S Molar mass C2H5OH = 46 g / mol 7.50 g / 46 = 0.163 moles the ratio between C6H12O6 and C2H5OH is 1 : 2 1 : 2 = x : 0.163 x = 0.0815 moles of C6H12O6 needed molar mass C6H12O6 = 180 g/mol 180 x 0.0815 = 14.7 g
March 3, 2012

spanish
Nosotros les (vender) el auto a unos chicos venezolanos. preterite form of the verb supplied
March 2, 2012

geometry
a sailboat has a sail which is shaped like a right triangle. The base of the triangle is 14 feet and the height is 20 feet. What is the area of the sail? The boat also has two smaller sails that are each half as large as the big one. How big is each of the two smaller sails?
March 1, 2012

spanish
THANX!
February 29, 2012

spanish
type the same qsn on gooooogle and the website is like the 2nd one the heading of the page on gooogle says: How can pierde be used? | SpanishDict Answers
February 29, 2012

statistics
A test was given out to a class of 20 students. The highest possible score to get is 30. The mean of the tests came out to 26. One student was caught cheating and got 20 points removed from their test. what is the new mean. 28,25,24,22 ?
February 28, 2012

Alg
I THINK ITS 30/25 = x/45 x=54 burgers
February 28, 2012

Aviation
What location of CG (forward or aft center of gravity) would be the most fuel efficient? The most stable? Could you change this situation if you changed the design of the aircraft?
February 26, 2012

Math
'one angle is 4 times as large as another angle of the same triangle. the third angle o the triangle has a measure of 60 degress.' what are the measures of the other two angles in the triangle.
February 23, 2012

GeOmEtRy!!!
I THINK ITS THIS : (1/2) x (2h-4) x h = 35 (h-2)h = 35 h^2-2h-35 = 0 (h-7)(h+5) = 0 Positive solution: height = 7 inches base = 2h-4 = 2*7-4 = 10 inches
February 23, 2012

Math
:)
February 23, 2012

Math
Probably (x+3)(x-4)
February 23, 2012

GeOmEtRy!!!
:)
February 23, 2012

GeOmEtRy!!!
I THINK ITS 3x^2 = 75 x^2 = 25 x=+5 or x=-5
February 23, 2012

math
I THINK ITS Each number in the sequence is 9 less than the previous number.
February 22, 2012

statistics
Varsity team try out. Assume the distribution of heights to be normal w/a mean of 64inches & standard deviation of 4 inches. only 15 students passed. how many students joined the try out?
February 22, 2012

statistics
a teacher decides to fail 25% of the class.Examination marks are roughly normally distributed w/a mean of 72 & standard deviation of 6. what mark must a student make to pass?
February 22, 2012

Calc
Write the equation of the line tangent to the graph of the function at the indicated point. As a check, graph both the function and the tangent line you found to see whether it looks correct. (1/x^3 -x)^2 at x= 2
February 21, 2012

calculus
The revenue from the sale of x units of a product is represented by the following formula. R = 10(5x + 1)–1 + 70x – 11 dollars Find the marginal revenue when 50 units are sold. (Round your answer to the nearest cent.)
February 21, 2012

Math
2m+6=2m-1 bring 2m to the other side 0+6=-1 I THINK THE ANSWER IS UNDEFINED because 6cannot=-1
February 18, 2012

Physics
At the moment t=0 a particle starts moving along thr x-axis so that its velocity projection varies as vx= 35 cos pi t cm/s, where 't' is expressed in seconds. Find the distance that this particle covers during t = 2.80 s after the start.
February 17, 2012

math
I THINK ITS THIS: If each line joins just two points, and you want a line joining every pair of points, then it takes 16 * 15 / 2 = 120 lines.
February 16, 2012

Math
multiply by 2 on both sides 6x-4=8x-18 then subtract 6x to the other side -4=8x-6x-18 then add 18 to the other side -4+18=8x-6x and then simplify and then solve for x 14=2x x=7
February 16, 2012

Math
I THINK IT'S THIS: 200=5x-100-2x 200=3x-100 -2=3x -2/3=x
February 16, 2012

geometry
set it up like x/65 = 160/130 solve for x probably u shuld get 80
February 16, 2012

Math
I think its rhombus because A rhombus is a quadrilateral having the following properties.. 1.All the sides are equal 2.Opposite sides are parallel i.e it has two pairs of parallel sides. 3.Opposite angles are equal
February 15, 2012

Math
probably 3/5
February 15, 2012

math
u to
February 15, 2012

math
ohhh okay
February 15, 2012

math
i just answered it
February 15, 2012

math
dont u have a calculator or are u not allowed to use it anyway ithink its this 38/100 simplified it to 19/50 35/100 simplified it to 7/20
February 15, 2012

math
probably 55.371 work: for mixed fraction you 6and4/5 multiply5&6 and add 4 and divide it by 5 8 and 1/7 multiply7&8 and add 1and divide it by 7 you shuld get improper fractions and then turn them to decimals and multiply both of them it wuld be much easier to use a calculator
February 15, 2012

math
use long division for 7/8 and you probably shuld get .875 and then multiply it by 39 and get 34.125
February 15, 2012

math
probably: 506/27 OR in decimals 18.7407
February 15, 2012

math
is it (32/3)*(51/9)
February 15, 2012

Math
welcome
February 15, 2012

Math
so i think its x=0 then solver y 2(0)-3y=6 y=-2
February 15, 2012

Algebra
Ithink its this Let d = number of days then cost of west trip: 450d + 1075 cost of south trip: 375d + 1500 375d + 1500 < 450d + 1075 1500 < 75d + 1075 425 < 75d 5.67 < d answer: 6 days or greater
February 15, 2012

math
welcome
February 15, 2012

math
its sometimes true
February 15, 2012

Spanish
!____!
February 15, 2012

Spanish
I think its: You buy your for your mother?
February 15, 2012

Math
multiply 12 by both sides
February 15, 2012

Math
probably 33.6
February 15, 2012

math:logarithms
put it in your calculator and see if it works
February 15, 2012

Mathe
is it(4m/9)+(13-1m/3)=4 ?????
February 15, 2012

Math, geometry
perimeter of a rectangle = 2width + 2length 30= 2w+2(4) 30= 2w+8 22= 2w w= 11 millimeters
February 15, 2012

Pre- Algebra
subtract 7n to the other side AND subtract 13 to the other side and also divide 3 to the other side,so 7n-5=10n+13 -5=10n-7n +13 -5-13=10n-7n -18=3n n=-6
February 15, 2012

AP CHEMISTRY
why pKa2??
February 15, 2012

math
In math, an array refers to a set of numbers or objects that will follow a specific pattern. An array is an orderly arrangement, often in rows, columns or a matrix. Arrays are used in multiplication and division as it shows a great visual to show how multiplication can be ...
February 15, 2012

math: elapsed time
Do u want to calculate elapse time?
February 15, 2012

math: elapsed time
go on gooogle and type in elapsed time in math. And check: Math:Elapsed Time-eThemes
February 15, 2012

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