Posts by Ash

Total # Posts: 558

Algebra 2
Elaine shoots an arrow upward at a speed of 32 feet per second from a bridge that is 28 feet high. The height of the arrow is given by the function h(t) = -16t2+32t + 28, where t is the time in seconds. a. What is the maximum height that the arrow reaches? b. How long does it ...

Algebra math
if a number is subtracted twice its reciprocal, the result is -23/5. what is the number?

Chemistry
Is thw positive valence of AlCl3 1 or 3 why?

Chemistry
Calculate the delta G of the reaction using the following information. 4HNO3+ 5N2H4 --> 7N2+ 12H2O Delta H(Kj/mol) -133.9 50.6 0 -285.8 Delta S(J/mol x K) 266.9 121.2 191.6 70.0

math
A= (x/7<x<8,x i s a counting number)

Chemistry
Frequency(v)=5×10to the power9 c=3×10to the power8 Wave length=c/v . . =3×10 8 /5×10 9 . . =?????

Maths
Ooops. Sorry...

Maths
To solve: 3×10tothepower8/5×10tothepower9

Maths
Thanku reiny

Maths
Thanks but i dont want tan theta= 1 to prove i want the value of theta is -3pi/4

Maths
Tan theta=1 Can theta=-3pi/4? How?

Maths
But the answer should be -2/5

Maths
Let z1=2-i,z2=-2+i Find. Re(z1z2/modulus of z1) I only know that modulus of z1= 2+i I have no idea . how to solve this?

Maths
Thanks for helping me

Maths
Thanks for helping m

Maths
Convert the complex no. In polar form : 1-i rcos? =1 rsin?=-1 r=?a2+b2 r=?(1)2+(-1)2 r=?2 Tan?=b/a =1/-1 =-1 After all this what i have to do to find out value of ?? Please help me.. For polar form, =r(cos?+isin?)

physics , math
The hydrostatic equation holds not just for air, but for other fluids such as water (air, though it is a gas, is often referred to as a 'fluid') as well. In the case of water the equation becomes even easier, as water (as opposed to air) can be treated as ...

Maths
Let the point p[4,-2] =[x1,y1] a[....] =[x2,y2] B[....] =[x3,y3] Now put the value in this formula, 1/2[x1(y2-y3)+x2(y3-y1)+x3(y1-y2)]=O Your answer will be 2. I mean value of k will be 2

algebra
solve log2x-6^256=4

math trignometry
Belated thanks...

math trignometry
Sin x\2,cos x\2 and tan x\2 for sin x=1\4. x in II quadrant.

Math
12= 3x/4 48=3x x=16

Biology
keep using punnet squares to cross the genotypes of parents!

Biology
50% dd x Dd= Dd Dd dd dd

SCIENCE
In each of the following acid-base reactions, identify the Bronsted acid and base on the left, and their conjugate partners on the right: (a) HPO3 2- + HSO3 - ? H2PO3 - + SO3 2- (b) C6H5NH3 + + OBr- ? HOBr + C6H5NH2 (c) H2PO3 - + CH3CH2CO2H ? CH3CH2CO2 - + H3PO3

MATH
A 0.26 M solution of a weak acid HA is 0.35 % ionized. What are the H+ , A- , and HA concentrations at equilibrium? What is Ka?

Maths
A clock is set right at 10AM.The clock gains 10 minutes in 24 hours. What will be the true time when the clock indicates 3PM the following day ?

Maths
A long wire of some length is cut into small pieces of 216 cm leave a small piece of length of 89 cm if this part were cut into equal pieces each of 18 cm the length of the leftover wire would be

math
a person runs 3 meters per sec for 1 min. how far did they go? would it be 3m/s x 1 = 3? is it correct?

Chemistry
You are given 1.226 g of a mixture of KClO3 and KCl. When heated, the KClO3 decomposes to KCl and O2, 2 KClO3 (s) ? 2 KCl (s) + 3 O2 (g), and 246 mL of O2 is collected over water at 24 °C. The total pressure of the gases in the collection flask is 755 torr. What is the ...

English
By the end of the book, Miss Maudie, Aunt Alexandra, and Calpurnia have all _____. frustrated Jem helped to care for for Helen Robinson earned Scout's respect <my choice incurred Bob Ewell's anger

math
someone help dont know the answer i slept in class while the teacher was explaining

math
if x is the set of pupils in a certain school and y is the set of pupils who play volleyball in this school.write y complementary in the distinctive method and shade by venn diagram

Algebara
wooooo

algebra 2
A person playing a game of chance has a 0.25 probability of winning. If the person plays the game 20 times and wins half of that number of times, what is the difference between the theoretical probability and the experimental probability of that person winning ? 0.50 0.25 0.30...

maths
An equilateral triangle is inscribed in parabola y^2=4axsuch that the vertex of the triangle is at vertex of parabola find area of triangle

maths
Thank u soo mch fr helpin me out..

maths
1: Length of lactus rectim of parabola with vertex(1,2) and directrix 3x-4y-2=0 is A) 27/5 B) 18/7 C) 28/5 i kniw the formula to find length of lactus rectum =4a

Chemistry
if a sample of gas has a volume of 8.88 ml at -12.0 C and .975 atm. what volume would this sample have at STP?

Bus. Math
I'm stuck on this exam also. Ms. Sue can you help???

Business Math
Jane is having difficulty deciding whether to put her savings in the Mystic Bank or in the Four Rivers Bank. Mystic offers a 12% rate compounded quarterly, and Four Rivers offers 14% compounded semiannually. Jane has $40,000 to invest and expects to withdraw the money at the ...

Bus. Math
What is the net price equivalent Rate of 9-15/18? a) .63427 b) .36427 c) .63573 d) .36573 Answer: B?

Math
how do you find the x intercepts for the equation x^2 + 7x -12? like, I know you have to set it equal to 0 but I have no clue what numbers multiply to -12 and add to +7. plz help

Check my answers
So do I...

Check my answers
I am sure Amber will remember that for next time, since you are saying it repeatedly, good luck with your MATH problem Amber :)

Econ
Do you think a nation’s output should be distributed according to income or according to some other standard (such as basic human need)?

Econ
Yours, I will cite you

Econ
How do you think a nation’s output should be distributed according to income or according to some other standard (such as basic human need)? EXPLAIN

ART 4 QUESTIONS PLZ HELP ASAP
4/4 ! thank you!

physics
Two chunks of ice are sliding on a frictionless frozen pond. Chunk A, with mass mA=5.0kg, moves with initial velocity vA1=2.0m/s parallel to the x-axis. It collides with chunk B, which has a mass mB=3.0kg and is initially at rest. After the collision, the velocity of chunk A ...

Math
A caterer prepares four times as many pizzas as she usually prepares for a large party. The caterer usually prepares 5 pizzas. The caterer also estimates that each party guest will eat 1/4 of a pizza. Can someone tell me the problenm that this would be?

Pre-Calculus
Draw the picture and find the area of the parcel of land. Circle your to partial areas and your total area. You start herman a corn and walk 300 yards due north. Then, you turn N 63 degrees E and walk 260 yards. Then, you turn S 55 degrees E and walk 240 yards. Then, you walk ...

physics
to what height should a cylindrical vessel of diameter d be filled with a liquid so that due to force on the verticle surface of the vessel be equal to the force on the bottom

Physics
A radioactive isotope of Bismuth undergoes Beta Decay with a half-life of 22 days. How long (in days) will it take the Activity (A) of the sample to decrease to one-ninth of its original value? Assume that the original activity is A0.

math
a ribbon is 7/9 of a yd long.divided by 3 people, what length will ea get?

maths simplify fractions
2 and 1over 4plus 5over8mines1over 2

Social Studies
Ms.sue what is wrong with you

Chemistry
A vessel initially contains pure A at a pressure of 1.0 bar. The total pressure of all gases at equilibrium is 1.5 bar. What is K for this reaction? A (g) <--> B (g) + C (g)

Chemistry
A vessel initially contains pure A at a pressure of 1.0 bar. The total pressure of all gases at equilibrium is 1.5 bar. What is K for this reaction? A (g) <--> B (g) + C (g)

Chemistry
A vessel initially contains pure A at a pressure of 1.0 bar. The total pressure of all gases at equilibrium is 1.5 bar. What is K for this reaction? A (g) <--> B (g) + C (g)

Math
simplify the complex fraction 4/x+5 +2 _________ 14/x+5 -2 Once i multiply by the LCD i get 4+2(x+5)/14-2(x+5) however i can't see what i can do next to simplify can you explain.

Chemistry
Aldol Condensation What might be the result if you did not add enough Hydrochloric acid and the final pH remained about 7? -Yield would likely increase and the purity of the product would increase -Yield would likely decrease and the purity of the product would decrease -Yield...

math
Keri walks her dog every morning. The length of the walk is 0.55 on each weekday. On each weekend day, the walk is 1.4 times as long as a walk on a weekday. How many kilometers did Keri walk in one week

math fractions
I got 8 6/7

Chemistry
During the synthesis of a Grignard reagent in diethyl ether solvent, what is the identity of the bubbles that show up on the surface of the magnesium? -Gaseous magnesium byproducts -Gaseous O2 -Gaseous H2 -Gaseous diethyl ether

Organic Chemistry
During the synthesis of a Grignard reagent in diethyl ether solvent, what is the identity of the bubbles that show up on the surface of the magnesium? -Gaseous magnesium byproducts -Gaseous O2 -Gaseous H2 -Gaseous diethyl ether

Physical Science- Atomic Structure
An electron jumps from energy level 1 to energy level 2 by absorbing a photon of energy 8 eV. What is the most likely energy of the photon that will be emitted by the electron when it moves back down to energy level 1? 2 eV 4 eV 8 eV 12 eV

math
|x^{2}-16x+56| = -4x-7 what does x equal?

Physics
93.34

statistics
a private opinion poll is conducted for a politician to determine why proportion of the population favors decriminalizing marijuana possession. how large a sample is needed in order to be 90 percent confident that the sample proportion will not differ from the true proportion ...

Algebra
For the following equation of a hyperbola determine the center, vertices, foci, and asymptotes? 36x^2-y^2-24x+6y-41=0

Algebra
how do you determine vertices?

chemistry
At a certain temperature, the Kp for the decomposition of H2S is 0.734.Initially, only H2S is present at a pressure of 0.102 atm in a closed container. What is the total pressure in the container at equilibrium?

History
Yea you are right I have no idea why it is called open study you can't even ask questions from your test or study's xD

Biology
sorry the last one go cut off.. and was wrong one A man and his wife both have normal vision, but a daughter who has color blindness can the man sue his wife for infidelity?

Biology
need help quickly please If barred pattern on chicken wings is a sex linked trait, set up a cross (hen and rooster), in which they the newly hatched chicks can be determined as male or female based on the barred pattern. and Color Blindness is inherited as a sex linked ...

Biology
Color Blindness is inherited as a sex linked recessive. If a color blind woman marries a man with normal vision, what would you expect in their children? Show a cross I put that X- x- Xx x-

Business Math
I believe that answer is incorrect. it would likely be $546.67?

Math
Adam wants to compare the fractions 2/5, 1/6 and 1/3. He wants to order them from least to greatest and rewrite them so they all have th same denominator. Explain how Adam can rewrite the fractions.

MATH
The length of Super Bowl commercials is said to be Normally distributed with a mean of 36 seconds and standard deviation of 8 seconds. a. Find the probability that a randomly selected Super Bowl commercial is shorter than 45 seconds? (2 points) b. Find the probability that a ...

physics
a rock is thrown vertically upward from ground level at t=0. At t= 1.5s, it passes the top of a tall tower and 1.0 s later, it reached its maximum height. what is the height of the tower?

Math
Also, I don't think they are parallel because if it's parallel then it would be equal and the angles *124 and 118* are not equal.

Math
Sorry I was trying to explain the picture. They are consecutive interior angles

Math
1. is line "L" parallel to line "M"? *picture of a transversal.. lines L and M don't touch and one line crosses through line L and M to create a transversal. angles 124 and 118 are on the bottom left side of the transversal* I tried my best to explain ...

Math
Okay. So, I would've chosen the right answer if I understand the question. Thanks Ms. Sue!

Math
find the sum of the interior angles of a nonagon. I know a nonagon has 9 sides.. A. 140 degrees B. 1,620 degrees C. 1,260 degrees D. 1,450 degrees If the question is asking for each interior angle then I think the answers A but if it's asking for the sum of ALL the ...

Art check please
1. A 2. D 3. C

S.S
Ms. Sue, is it C?

S.S
Whose mill launched the factory system? A. James Monroe B. Eli Whitney C. Samuell Slater D. Francis Cabot Lowell I think it's D.. am I right?

science
explain an animal cell in your own words and two things each part does

calculus
64

Health
Oh okay.. that's what I thought at first. I can answer the question now. Thank you

Health
When it says "within your control" is that saying not in my control ?

Health
Two key components to keeping your heart healthy that are within your control are exercise and.. A. diet B. Rest C. heredity D. enviroment I think it's B.. am I right?

Chemistry grade 11
5.6g of an organic compound on burning with excess of oxygen gave 17.6g of CO2 and 7.2g H2O. the formula of the compound is?

language arts
Oh Oh Oh is it C then?

language arts
read the following lines of dialogue from a coversation johnny has with mrs. bessie, the lytes servant. "what happened to that Cousin Sewall?" "Gone to Worcester. Joined up with the Minute Men." "But hes too fat and.." "Soft? No. From now on ...

math
how do I rearrange the equation a=d/t if I want to find d?

math
a cyclist is travelling with an average velocity of 5.9m/s [w]. what will be his displacement in 1.5 h? please show steps to answer-I tried but couldn't find the answer :(

Physics
bob drop a rock from a height of 4.5 m. (the acceleration due to gravity is 9.8 m/s^2) 1.at s the initial speed of the rock 2. how long is the rock falling before it hits the ground c. what is the final speed of the rock? [I have trouble with c) My work: a) v1 =0m/s b) v1t +1/...

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