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Posts by kerry

Total # Posts: 128

Statistics
IF SAT scores have approximately a normal distribution with the mean being 550 and standard deviation of 90. How can I calculate the SAT scores of the 95th percentile? Thank you

Math (Sinking fund)
Kenny opened a sinking fund account and hopes to accumulate $16,000 in 25 months. The yearly interest rate is 7.8%. How much should he invest per month to reach his goal? Would the answer be 591.58?

Amerian government
Only answers 1.c 2.c and d 5.b are correct

Statistics
A certain type of lightbulb is advertised to have an average lifetime of 1,000 hours. Assume the lifetimes of these lightbulbs are approximately normally distributed with a standard deviation of 250 hours. A) Find the percentage of lightbulbs that will fail during their first ...

Math
Kerry cut an 8ft board into 6 pieces that are equal in length represent the problem as a fraction

MICROECONOMICS
Question One: Assume Susan has $80 to spend on candies and chips each week and both goods must be purchased whole units (no fraction). The price of candies is $8 each and chips is $20. CANDIES CHIPS # of cans Total Utility (TU) Marginal Utility (MU) MU/P Consumer Surplus # of ...

Functions & Trig
evaluate each function at the given value: f(n)=-n^6+31n^4+26n^3+20n^2+-33n-20 when n=6 I was thinking that I should do synthetic division, but I've tried it a few times and I can't get it to work out correctly. Please help!

Functions & Trig
evaluate each function at the given value: f(n)=-n^6+31n^4+26n^3+20n^2+-33n-20 when n=6 I was thinking that I should do synthetic division, but I've tried it a few times and I can't get it to work out correctly. Please help!

spanish
Instructions: Modifique el párrafo por cambiar las palabras entre comillas al tiempo FUTURO. Modelo: Mi familia ‘va a visitar’ a nuestros abuelos este verano. Mi familia visitará a nuestros abuelos este verano. 1. Este año ‘vamos a hacer&#...

Science- Physics
an 80 kg skater and a 60 kg skater stand in the middle of an ice rink and push each other away. the 60 kg skater moves away at 2 m/s calculate her momentum and the velocity of the other skater

maths
if it takes 10 men 6 months to build a house, how long will it take one man?

Coding
Patient presents to the ER with severe nosebleeds for the past week. Blood work is performed revealing acute blood loss anemia. The ER doctor performs a limited, bilateral packing of the anterior nasal cavity. Patient's anemia will be following by her primary care ...

Chemistry
Ok I understand how to finish it, but if its 0.65 nanometers would my numbers be correct? Also, how do you know to divide g Cu by 0.97? I came across that last year but never really understood why you divide and not multiply. Thanks!

Chemistry
edit: 2.5161 x 10^-6 cm

Chemistry
I have a problem that says: Copper is an excellent electrical conductor widely used in making electric circuits. In producing a printed circuit board for the electronics industry, a layer of copper is laminated on a plastic board. A circuit pattern is then printed on the board...

Math
The answer is A

Math
Would the answer of 14.03 be correct also.

Math
I come out with the answer of 14.02.

Math
I don't know how to solve this problem. Cameron can run3.6 miles for every 1.9 miles that Samantha ran. If Samantha ran 7.4 miles, how far did Cameron run.

fitness and nutriion
Your heart functions in your body as

research topic child development
Here is another question. Do you think a parent pushing their children to reach milestones before they are ready could lead to later rebellious behavior?

research topic child development
I was reading a story earlier this evening, and I was wondering whether one detail could have been inspired by real life. Has anyone ever studied which parenting styles are most likely to lead to kids later having bad behavior?

currency exchange/ math
Timothy sold US$130 to a bank when the exchange rate was C$1 = US$0.9315. The bank charged him a commission of 0.55%. How many Canadian dollars did he receive from the bank for US$130?

statistics
If a distribution of test scores has μ = 65 with σ = 6, and you scored at the 89th percentile, what is your score?

Math 5th
Val walks 2 3/5 miles each day. Bill runs 10 miles once every four days. In 4 days who covers more distance?

Pure Mathematics
4) The roots of the equation z^2+2z+4=0 are denoted by α and β. a) find α and β in the form re^iθ, giving the values of r and θ b) Using de Moivre's Theorem, show that α^3=β^3. c) find the exact value of αβ*+α*β

parentheses
r;oawieutpuyghpta;lkggggggggg oeiwy poiupwe

life orientation
Ways in which humans or environmental problems impacts on the community

economics
In your (imaginary) neighbourhood, the general consensus seems to be that 4 out of 5 cars are in good working order. The price for a good second-hand car is 2000$, while malfunctioning ones typically fetch 600$. (a) What is the expected value of a used car

Chem 151
1.56 g He

Chemistry
What is the ionic equation for (NH4)2CO3=2NH3+CO2+H2O

Physics
A spacecraft of mass 2000kg, moves at a constant speed of 7800m.s- in space. the main engine switched on for 10s during which time the exhaust gases travels at 10 000m.s-. As a result of this, the craft travels at 8000m.s- after 10s. Calculate the mass of the exhaust gas.

Physics
A 0,1kg bullet is fired horizontally towards blcok A and B, which are hanging from cords. The bullet passes through block A of mass 2kg and becomes embedded in block B of mass 6.4kg. The bullet thus causes A and B to start moving with velocities of 6m,s- and 2m.s- respectively...

chemistry
helloooo? please somebody answer... now i have a bunch of solutions here but i cant figure out the right one and

chemistry
if i solve it by last equation i get something with 2.xxxxx*10^-7 could this be the right solution?

chemistry
what does E=E(A)-B mean?

chemistry
could somebody just post the solution process or post the formula? thanx a lot

Math
A box has 8 blue and 5 green jelly beans. A bag has 6 blue and 8 green jelly beans. A jelly bean is selected at random from the box and placed in the bag. Then a jelly bean is selected at random from the bag. If a green jelly bean is selected from the bag, what is the ...

NEED HELP ASAP, college math
Find the future value! Periodic payment: $650.00 Payment interval: every month Term: 19 years, 2 months Interest rate: 4.75% Compound frequency: monthly

college math
Calculate the future value of an ordinary annuity consisting of annual payments of $1,000 for 4 years if the payments earn 10.70% compounded annually for the first 2 years and 9% compounded annually for the last 2 years. For full marks your answer(s) should be rounded to the ...

Calculus
(x) = x ^3 - 12 x + 11, write the equation of the line tangent to the curve at x = 1

college math
ok this is the last question i need help on. Abigail just received an inheritance from her grandfather's estate. She will be entering college in 1 year and is expecting to need $3,000, $5,000, $4,000, and $4,500 respectively at the beginning of each of the 4 consecutive ...

college math
Raisel borrowed money from Irlene and agreed to pay back $400 today and $300 in 5 years. If Raisel has a lot of money available now and wants to pay back the loan today, how much money would she have to pay Irlene if the loan was at 6.75% compounded quarterly? For full marks ...

college math
1. Rebecka borrowed $500, $5,000, $3,500, and $2,000 from her dad on September 1 of each of four successive years for college expenses. Rebecka and her dad agreed to a loan at the rate of 3.50% compounded monthly. If it is now 1 year from the last day that she borrowed money, ...

advanced algebra 2
Factor these expressions: 3x^2 + 8x + 4 2x^2 - 7x + 6 5x - 2x^2 - 3

advanced algebra 2
Factor the expressions: x^2 - 13x + 30

advanced algebra 2
Find an equation for the line with the given properties: 1) Containing the points (1, 3) and (-1, 2) 2) Slope = -2/3; containing the point (1, -1) 3) X-intercept = 2; y-intercept = -1 4) Parallel to the line 2x – y = -2; containing the point (-1, 2) 5) Perpendicular to ...

law
well some do... and those are the ppeople that i need to elaborate on

law
well wen someone is poor they turn to illegal crime and use guns as a tool to make money but i need to expand on that argument

law
how does poverty relate to gun usage?

math: advanced geometry
given triangle ABC with side b=14 ft, c=17 ft, and a=17 ft, find the measure of angle A.

math: advanced geometry
a sphere has a volume of 12,348pi cubic inches. Find the surface area of the sphere.

world geography :)
how many time zones are there in the world?

math: advanced geometry
if the surface area of a sphere equals the surface area of a cube, what is the ratio of the volume of the sphere to the volume of the cube?

math: advanced geometry
a square pyramid resting on its base is filled to half its height with 320 cm^3 water. how much water is needed to finish filling the pyramid?

functions
a car is spinning at a rate of 4.3pi radians/s. how many rotations will it make in an hour?

advanced functions grd 12
i didn't know how to put the root in so i converted it by adding in the 1/2 exponent! thank you :)

advanced functions grd 12
im not sure wheer to start and how to do solve this problem solve: cosX(2sinX-3^1/2)=0 ,0<(or equal to)X<(or equal to)2(pie sign)

physics
a 400 N woman is totally immersed in a water tank and displaces 0.0368 m^3 of water. what is her density in kg/m^3?

math
how long will it take $5000 to grow to$8000 if it is invested at 5% compounded quarterly?

functions 12
solve (x^3)+(12x^2)+(21x)-(4)=(x^4)-(2x^3)-(13x^2)-(4) the answers are x=-1,-3,7,0 but i need to know how to do it

math
factor the polynomials x^2 -6 x^2 +5x-6

math grd 10
factor the polynomials x^2 -6 x^2 +5x-6

functions grd 12
so the answer wud b 1?

functions grd 12
what are the number of turning points for this equation? y=4x^2 and can you plz explain how u find them thanks :)

Math
A town considers wheather to put curbs along the streets. The ratio of people who support putting cubs to those who oppose it is 2 to 5. A. What fraction of the people oppose putting in curbs?

Math-Statistics
It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minutes per day that people spend standing or walking. Among mildly obese people, minutes of activity varied according to the N(373, 67) distribution. ...

physics
A) sin(56)*7.9= Vo Vo= 6.55 y=Vf^2-Vo^2/2a y=0^2-6.55^2/2(-9.81) y=-(6.55^2)/2(-9.81) y= 2.1867 2.1867+ 1.3= 3.5m

chemistry
pH = pKa + log ([A-]/[HA]) We ned to determine the concentration of the sodium acetate: Molar mass CH3COONa = 82.0340 g/mol Therefore you are adding 1mol CH3COOH per litre = 1.00M pKa CH3COOH = 4.75 pH = 4.75 + log (1/1) pH = 4.75 as you got - OK. Question 2: If you add 5 ml ...

English
In what ways do APA format and style make academic communication hard?

mrt
Predicting what types of bicycles different customers will want and deciding which of these customers the business will try to satisfy are activities a firm should do as part of

English
a brief paragraph summarizing the educational, communication, and career benefits of being a student within the Laureate International University Network.

communication
In what ways do APA format and style make academic communication harder?

Math 11u
A town has a population of 8400 in 1990. Fifteen years later, it's population grew to 12,500. Determine the average annual growth rate of this town's population. Round to the nearest tenth of a percent. (the answer in the book is approx.2.7) thank you for your help!!

Math 11u
A Computer company has been selling 1200 computer games per week at $18 each. Data indicates that for each $1 price increases, there will be a loss of 40 sales per week. It costs $10 to produce each game. Let x represent the number of $1 price increases. a)state the revenue ...

Math 11u
A town has a population of 8400 in 1990. Fifteen years later, it's population grew to 125,000. Determine the average annual growth rate of this town's population. Round to the nearest tenth of a percent.

Math 11u
There are two values for "a" and "b", if any, that would make (-4)^a(divided by)b Undifined? Explain reasoning.

Math 11university
Determin the points of intersection algebraically : f(x)=-x(squared) +6x-5, g(x)=-4x+19

chemistry
Suppose a solution containing 3.50g of Na3PO4 is mixed with an excess of Ba(NO3)2. how many grams of Ba2(PO4)2 can be formed. 2-Na3PO4 +3-Ba3(NO3)2= 1-Ba3(PO4)2 + 6-NaNO3.(Balanced equation)

chemistry
How many grams of NaN3 are required to produce 17.4 ft3 of nitrogen gas?

chemistry
Suppose a solution containing 3.50 g of Na3PO4 is mixed with an excess of Ba(NO3)2. How many grams of Ba(PO4)2 can be formed.

chemistry
The molecular formula of acetylsalicylic acid is C9H8O4. How many molecules of C9H8O4 are in a 750.0mg tablet of asprin?

Joan of Arc/Ms. Sue
OK Ms. Sue I figured out some more! Are these correct: -The name for the king before he is crowned is the Dauphin -Joan met with the king at a chateau called Chinon. -The king played a trick on Joan at their first meeting, What did he do? ANSWER-He hid himself among the lords ...

Joan of Arc
Are these correct?: -France is fighting England and they are being helped by the Burgundians right? -Joan heard the voices of god and angels right? Joan wanted to have Charles VII (name) crowned at Reims (city) -Joan was captured by the Burgundians at Burgundy(city) and sold ...

Joan of Arc Film/Ashley
Umm OK let's see so France is fighting England and they are being helped by the Burgundians right? Joan heard the voices of god and angels right? I Don't Know: -The name for the king before he is crowned is the______ -Joan wanted to have______(name) crowned at_______(...

Social Studies
I'm really struggling with questions about Joan of Arc! I have a worksheet to answer about the 1999 film Joan of Arc, but I have no clue what I'm doing because I was absent the whole first half of the movie. I tried to research info about Joan, but got nothing that ...

help plz
laura am i correct

help plz
thx but am i correct?

the latin bases
your welcome laura and thank you ms. sue

the latin bases
ok thank you for your help with a 1 word answer is there any way you can actually helpme with this problem?:)

the latin bases
Which word is a synonym of verbiage? A} terse B} wordiness C} curt D} concise .I choose c. is my answer correct?

help
Which statement does NOT describe prescriptivists? A}Language should be recorded, not judged. B}Language use should follow strict rules C} Language use should never change D} Language use should be judged and evaluated. i choose B

shadow
does that work?lol

shadow
lol when u look at the wall u see a drawing of urself that is called ur shadow so basically that's its name just like if they have an imaginary friend this is something like it its a reflecTION

help
thank you

help
The words chemistry,sherbet,elixir, and zero were borrowed from which language? A}Spanish B}Dutch C}Arabic D}Russian . I choose D. p.s. am i correct?

math
I meant 142 divide 24,please show how you solve it.

math
please help me solve 24 divided by 142,please show working.

social studies
what was the age of the nation in 1997

socical studies
how many wars in the 19th century involving the united states

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