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Posts by Megan

Total # Posts: 1,181

Physics
You can run 8.0 m/s , 20% faster than your brother. How much head start should you give him in order to have a tie race over 90 m ?

Physics
You allow yourself 34 min to drive 26 mi to the airport, but you're caught in heavy traffic and average only 15 mi/h for the first 13 min . What must your average speed be on the rest of the trip if you're to make your flight?

Physics
A rock is thrown directly upward from the edge of the roof of a building that is 40.2 meters tall. The rock misses the building on its way down, and is observed to strike the ground 4.00 seconds after being thrown. Neglect any effects of air resistance. With what speed was the...

Physics
In a chase scene, a movie stuntman runs horizontally off the flat roof of one building and lands on another roof 2.0 m lower. If the gap between the buildings is 4.8 m wide, how fast must he run to cross the gap?

Math
Also the pathway is the same width all the way around the garden.

Math
A garden measuring 12m by 16m is to have a pedestrian pathway installed all around it. The pathway and the garden have a total area of 285m^2. What will be the width of the pathway? (Please explain as you go)

Language Arts
Is anoyoumus correct?

physic
A concave makeup mirror is designed so that a person 29 cm in front of it sees an upright image magnified by a factor of two. What is the radius of curvature of the mirror?

Math
Thank you!

Math
1. Hannah drew a pattern using only equilateral triangles. Which of the following statements about the angles is an equilateral triangle is true? A. The measurement of each angle is 60 degrees** B. The measurement of each angle is 120 degrees C. The measurement of one angle is...

Algebra
Tom and Jerry are working together to weed the garden. Working together it takes them 2 hours and 24 minutes. If it takes Tom two hours longer to finish the job alone than it takes Jerry to finish the job alone, how long would it take each of them to weed the garden if they ...

Science
The answers are right they are 1- A 2- D 3- C 4- A

Science
Thanks @smile more but #8 is B thanks for everything else EVERYONE #8 IS B!!!!!

math fractions and decimals
which is more 0.85 or 7/9

Math
Thank you so so so much @Damon, ur a lifesaver. :D

Math
So this is a math quiz I took a few months ago and they said I can redo it, but I have to explain why the correct answer is correct... And idk. Which equation represents 15 more than r is 61? The answer is r + 15 = 61 but idk why? What is the value of 4^2 -2 (3 x 5 + 1) The ...

Math
In a shipment of 400 parts, 15 were found to be defective. How many defective parts should be expected in a shipment of 1000 parts?

Math
Carol spends 15 hours every 2 weeks practicing her culinary skills. How many hours does she practice in 5 weeks ?

Math
I am not sure what formula do j use

Math
Mary can read 20 pages in 30 minutes. How long would it take her to read 160 page book? Write your answer in hours and minutes .

Math
A worker can complete the assembly of 12 tape players in 4 hours. At this rate, how many can the worker complete in a 40 hour work week ?

Math
The ratio of boys to girls in a class is 6 to 5. How many girl students are there if there are 30 boys?

math
The production costs for 4 lollies is 9.55 strawberry, 8.70 orange, 9.99 grape, 6.30 bubblegum. The packaging is the same for all lollies at 5.00 per lolly. Owners like to add 25% markup on their stock. Calculate the retail price of the strawberry lolly. Is packaging included ...

Chem
How many liters of H2 gas can be produced at 0 ∘C and 1.00 atm (STP) from 48.0 g of Zn? Zn(s)+2HCl(aq)→ZnCl2(aq)+H2(g)

Math
A,B,D

science
will the air above a surface that has a high albedo be warmer or cooler than the air above a surface that has a low albedo? Low.

earth science
briefly explain how earths atmosphere heated? Energy is transferred between the earth's surface and the atmosphere via conduction, convection, and radiation. Conduction is the process by which heat energy is transmitted through contact with neighboring molecules

math
I need to know how many yards do they need to gain on the fourth down to have 10 yard gain from there starting position

science
the answer is B

Calculus
The consumer demand equation for tissues is given by q = (97 − p)2, where p is the price per case of tissues and q is the demand in weekly sales. (a) Determine the price elasticity of demand E when the price is set at $26. (Round your answer to three decimal places.) E =...

math
If 3 people walk around a track, one takes 6 min, one takes 9 min and one takes 12 min. How long til they meet at the start line?

Chemistry
How many electrons in an atom could have these sets of quantum numbers? n=3 n=5 , l=2 n=7 , l=3 , ml=-1

Science
THANKS ANON!!!!!

Probability/ Stats
Assume that it is known that 95 percent of the launching of satellites into orbit are successful. What is the probability that in the next four launching there will be. Not sure where to start. can someone help me with steps on how to find the answer?

Statistics
A family consists of ten children. Assuming that the sexes are equally probable, find the expected number of boys in the family. What is the probability that the expected number of boys will not occur? (Not sure where to start) I got partial credit and I answered 5 (Question ...

Technology
3 is B 4 is D plz trust me

chemistry
Write the net ionic equation for the following molecular equation. HNO3 is a strong electrolyte. NaNO2(aq) + HNO3(aq)--> NaNO3(aq) + HNO2(aq) HNO2 is a weak electrolyte.

Math
Salon an was told the written paper on his science experiment should express measurements in liters. Which shows how to calculate the number of liters he used if he used 5 cups of water

Biology
Which of the following depends on bacteria?

medical
Choose the combining form which best completes the following group: PONT/O, CRANI/O, FORAMIN/O, _______.

vocabulary
the couple ordered for hors d'oeuvres at the wedding

stats
The mean tax-return preparation fee H&R Block charged retail customers last year was $183 (The Wall Street Journal, March 7, 2012). Use this price as the population mean and assume the population standard deviation of preparation fees is $50. Round your answers to four decimal...

stats
Three firms carry inventories that differ in size. Firm A's inventory contains 2000 items, firm B's inventory contains 5000 items, and firm C's inventory contains 10,000 items. The population standard deviation for the cost of the items in each firm's inventory...

algebra
From 2009 to 2014 the percent of students placing into Math 101 has increased from 13% to 25%. Meanwhile, the percent of students placing into Math 222 has dropped from 25% to 7% If both placements change at a linear rate, what will the percentage be when the percent of people...

algebra
A 24 question mathematics exam is worth 100 points. There are fill-in-the-blank questions worth 2 points each, multiple choice questions worth 6 points each, and long answer questions worth 5 points each. The number of fill-in-the-blank questions plus the number of multiple ...

Algebra
Walking Speed The avg. walking speed R of a person living in a city of population P in thousands is modeled by the function R(P)=0.37 times ln P + 0.05. where R is in feet per second. The populatin of Boston is 532,000, find the average walking speed of people living in boston.

math
convert to an exponential equation 3 = log(2, 8)

ALGEBRA
A BOATMAN ROWS TO A PLACE 48KM DISTANT AND BACK IN 14 HOURS; HE FINDS HE CAN ROW 4KM WITH THE STREAM IN THE SAME TIME AS 3KM AGAINST THE STREAM. FIND THE RATE OF THE STREAM?

ALGEBRA
a policeman is pursuing a snatcher who is ahead by 72 of his own leaps. the snatcher takes 6 leaps while the cop takes 5 leaps, but 4 leaps of the snatcher are as long as 3 leaps of the cop. how many leaps will the cop make before he catches the snatcher?

ALGEBRA
i have homeworks that in algebra, and those question i post are the questions i can't really solve

ALGEBRA
please help me

ALGEBRA
a policeman is pursuing a snatcher who is ahead by 72 of his own leaps. the snatcher takes 6 leaps while the cop takes 5 leaps, but 4 leaps of the snatcher are as long as 3 leaps of the cop. how many leaps will the cop make before he catches the snatcher?

Alpha
mr brown borrowed $5,340 from a bank at 10% aunnum simplr interest for 9 years. the sum of the money paid in interest to the bank and the total amount of money repaid to the bank

Algebra
a 2-liter bottle of Pepsi costs $2.19. A six pack of 12 oz cans costs $2.99, which is the better value and what is the total cost per ml? there are 29.6 ml in a fluid ounce.

Algebra
You drive up to Canada and notice that gas costs $1.31 per liter. The Canadian dollar is worth U.S. $1.02. How much will it cost you in american dollars to fill up your 12 gallon tank? What id the price per gallon up in Canada in American dollars?

Algebra
the space shuttle does one full orbit every 90 minutes and the earth is 25,000 miles around. What is the apparent speed of the space shuttle?

Physics
A pendulum swings back and forth up to a maximum height of 1.52 m. Neglecting friction, what is the speed of the pendulum at the lowest position. a) 2.7 m/s b) 3.9 m/s c) 5.5 m/s d) 30. m/s I thought the answer would be 0 m/s because it wouldn't move at the lowest position...

Science
How much force is exerted to lift 750 kg of water in the well against the force of gravity? How much work is done to lift this water .05m? How does this compart to the work done byt he man in the treadmill?

Prealgebra
Find the surface area of the prism. Round to the nearest tenth if necessary. The three sides are all 8.1 inches, the area of the base is 28.4 inches^2, and 12 inches is the length. It's a,b,c, or d. A. 348.4 in^2 B. 320 in^2 C. 291.6 in^2 D. 251.2 in^2

algebra 2
Three hundred and fifty-eight tickets to the school basketball game were sold. Student tickets were $1.50 and non-student tickets were 3.25. The school made $752.25. How many student tickets were sold?

Algebra 2
A chemist has a bottle of 1% acid solution and a bottle of 5% acid solution. She wants to mix the two to get 100 mL of a 4% acid solution. How much of each should she use?

Physics
4.5

Statistics
A sample of 53 night-school students' ages is obtained in order to estimate the mean age of night-school students. = 25.7 years. The population variance is 12. (a) Give a point estimate for mu. (b) Find the 95% confidence interval for mu (lower and upper limit). (c) Find ...

Statistics
By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 6 seconds. (a) How many measurements should be made to be 90% certain that the maximum error of estimation will...

Statistics
How large a sample should be taken if the population mean is to be estimated with 90% confidence to within $75? The population has a standard deviation of $892. So far I have n= (.2)(5)^2, but I don't think that's right....

Latin
anyways thank You for your help.....

Latin
well your not being very nice with the exclamation marks._.

Latin
well it would be more helpful -_- are you a tutor?

Latin
well its not my fault it doesn't let me put the website!

Latin
Day 1- 12 labors of Heracles greekmythology test prep

Latin
Ms. Sue

Latin
its a website but it doesn't let me put it

Latin
1. the second paragraph begins with the sentence " Offsetting his strength was a noticeable lack of intelligence or wisdom ". Use evidence from the text to support this claim. I NEED HELP

chemistry
The enthalpy of formation of MX is ΔHf° = –493 kJ/mol. The enthalpy of sublimation of M is ΔHsub = 143 kJ/mol. The ionization energy of M is IE = 437 kJ/mol. The electron affinity of X is ΔHEA = –317 kJ/mol. (Refer to the hint). The bond energy of ...

chemistry
OK thank you! I'm gonna ace this test!:)

chemistry
Yes I do know them but I don't get the parts with the parentheses. What do they mean?

chemistry
Write and balance each of the following equations, and then identify each by type. a) copper+chlorine-->copper(ll)chloride b) calcium chlorate--->calcium chloride+oxygen c)lithium+water--->lithium hydroxide+hydrogen d)lead(ll)carbonate--->lead(ll)oxide+carbon ...

chemistry
What do the parentheses mean like for example in lead(ll)oxide, though?

chemistry
Write and balance each of the following equations, and then identify each by type. a) copper+chlorine-->copper(ll)chloride b) calcium chlorate--->calcium chloride+oxygen c)lithium+water--->lithium hydroxide+hydrogen d)lead(ll)carbonate--->lead(ll)oxide+carbon ...

Chemistry
In de Broglie's equation w=wavelength w=h/mv how do i rearrange to solve for mass

art
MsSueWasUncalledForAndUnhelpful, your answers are correct, thanks! I got 10/10 (100%)

ELA
ok thank you

ELA
in the article " Letter From Jackie Robinson on Civil Rights " for short response 1 I cant find what African americans want to recive and the details that support it. and for short response 2 I cant find how president Eisenhower unknowingly crush the spirit of ...

algebra
6(5y-4) 30y-24 -3+2(6z-3+4)

science
What are the transporters of protein in plants?

physics
A snowmobile is originally at the point with position vector 26.1 m at 95.0° counterclockwise from the x axis, moving with velocity 4.25 m/s at 40.0°. It moves with constant acceleration 1.73 m/s2 at 200°. After 5.00 s have elapsed, find the velocity vector, and ...

Trigonometry
point A and B are 100m apart and are of the same as the foot of a building. the angle of elevation of the top of the building from point A an B are 21 degrees and 32 degree respectively. how far is A from the building

calculus
Hello! Just needed help with understanding this specific question. We never really wet over Euler's method so I'm not sure how to go about it. "Use Euler's method in order to solve the initial value problem below. dy/dx = x-3 and y=4 when x=1 Use Euler's ...

History
1)C 2)D

History
In which Sumerian city was the most famous ziggurat located? A. Uruk B. Kish C. Lagash D. Ur

Chemistry
Assuming equal concentrations and complete dissociation, rank these aqueous solutions by their freezing points. CoCl3 K2CO3 KNO3

math
8/5×3/5=24/5=5

ART Check
1.b 2.d

calculus
I needed help with this graphing calculator assignment; my sister took my calculator so I don't really have anything to work with, unfortunately. The graphing calculators online are really confusing and seem to require payment to work - so i'm pretty desperate. just ...

economics
if you could verify/falsify my answers on these multiple choice questions and possible give me insight on possible correct answers, that would be great. thanks! 1. Which is an acceptable market method of regulating negative externalities? A. Legal action against the source ...

science
THANKS @Anonymous

Biology
Hello guys !! Here's the answer so.... Deflecting binds with receptors in synapses ... Work out the rest for yourself it's a starting step

Geometry
Original Statement "If it's a garage sale, then it's a Sunday." Statement 1 "If it's a Sunday, then it's a garage sale." Statement 2 "If it's not a Sunday, then it's not a garage sale." Statement 3 "If it's not a ...

Human Geography
Discuss the origin, diffusion, and impact on the cultural landscape for one of the following: A) folk housing styles in the United States. B) Buddhism in Asia. C) English in South Asia. Anyway I can get help with this? I have an FRQ due thursday and need help answering these.

chemistry
how many moles of no2 remain when 2.5 moles of n205 completely react

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