Posts by anonymous

Total # Posts: 116,188

aneconomicsalytic metheds of
find the max and min distance from the origin to the ellipse x^2+xy+y^2=3<hint use x^2+y^2 as your objective function

CALCULUS
For the function f(x)=e^(x^(1/2)) , determine the error between the actual function value and the 3rd degree Taylor Polynomial (centered at a = 4) , at x = 4.1 a) 7.57 x 10^-8 b) 1.46 x 10^-8 c) 1.46 x 10^-7 d) 1.46 x 10^-9 e) 7.57 x 10^0

Maths
cylinder 2 pi r h cone pi r s where s is the slant height s^2 = r^2 + h^2 so pi r sqrt(r^2 + h^2) ratio cylinder over cone = 2 pi r h/ [ pi r sqrt(r^2 + h^2) ] = 2 h/sqrt(r^2 + h^2)

Math
I didn't this is the cost!

Grammar
Is the sentence below correct? "I am grateful for the unforgettable memories that we had with each other."

algebra
a + c = 30 8a + c = 100 ================== subtract -7 a = -70 a = 10 then c = 20

Algebra
X/3-10=-12

6gr8 math
It took 3.5 hours for an airplane traveling at a constant speed of 550 miles per hour to reach its destination. What distance did the airplane travel until it reached its destination?

Algebra
X/3-10=-12

Algebra
X/3-10=-12

Math
A scale model of a building is 8 in. by 12 in. The scale is l in:15 ft. What are the dimensions of the actual building

7th grade science
Thanks:)

7th grade science
How does the insulin pump help a person with type 1 diabetes maintain homeostasis?

Language arts
Thank you

Language arts
Which sentence uses the past form of an irregular verb 1.my friend is keeping a journal 2. Adam has seen that show twice 3. Elsa gave me this book 4. We listened to the weather report I think it’s 3

Calc
Yep. I've gone to the point -2.015<x<-1.985, because -0.03<2x+4<0.03 and you solve from that point on. But what do I choose to get d?

Calc
Given lim_(x->2) (2x-2) = -6, what is the best choice of d such that |(2x-2)-(-6)| < 0.03 whenever |x+2| < d?

Math
Multiply (-3 x -9) and (-3 x -4a) -2a+7+27+12a Now collect like terms 10a+34

Math
Sorry it's equal to m

Math
The graph shows the height, y, in centimeters, of a plant after a certain number of weeks, x. Linda drew the line of best fit on the graph. A graph titled Plant Height shows Number of Weeks on x axis and Height of Plant in cm on y axis. The scales on both x and y axes are ...

math
In triangle FGH, mF is 100°, mG is 40°, and mH is 40°. The exterior angles of triangle FGH are J, K, and L, and they are adjacent to F, G, and H, respectively. What is mK?

English
Thank you

English
Please check this (Although is underlined) Although he had never tried it, Jeff knew he would like hot and sour soup. a. relative pronoun b. subordinating conjunction c. personal pronoun d. preposition****

English
(Although is underlined) Although he had never tried it, Jeff knew he would like hot and sour soup. a. relative pronoun b. subordinating conjunction c. personal pronoun d. preposition

Geometry
1. If RST=NPQ, which of the following is true? A) R=P B) R=Q C) T=P D) T=Q <---- My answer 2. Given ABC=PQR, m<B=3v+4, and m<Q=8v-6, find m<B and m<Q. A) 22 B) 11 C) 10 <---- My answer D) 25 3. Which of the following statements is true about the triangles ...

English
Each year, Americans eat 152 pounds of refined sugar per person; this is 24 pounds more than in 1970. a. simple b. compound c. complex **** d, compound complex

Chemistry
Afirst order reaction completed the 90%in 30minute find the time for99.9%,,,,

Math
There are 350 red flowers in a room there are 70 more yellow flowers then red flowers there are 140 fewer white flowers then yellow flowers what is the ratio of the number of red flowers to the yellow flowers to the white flowers

Math
My question is if 114 is 2/3 of what number . so do I 114 = 2 x 3 x 19 to get my answer or ?

Math
I want to understand what the stept in finding 135 is 3/7 of what number?

Music
If you are in connexus these are the right answers. 1. D 2. B 3. B 4. B 5. C

Math
There are 24girls in a class of 40 pupils. What percccetage of the pupils are girls?,

HELP
Explain how Charles Darwin used the theory of natural selection to rationalize why each species of finch of the Galapagos Island had a different type of beak.

science help
I pick D then

science help
Last one. Idk abt this one The picture above shows two phenotypes of peppered moths (dark and light). The dark moth has an advantage over the light moth because it can blend in with its environment better. As a result, the darker moth is more fit to survive, reproduce and pass...

Science :))
Earth's inner core is responsible for Earth's ... Magnetic field *** Ocean currents Volcanic activity Tectonic plate movement _____ make up ______ which make up ______. Organs, tissues, cells Cells, organs, tissues Tissues, cells, organs Cells, tissues, organs **** ...

Science! Please help!
Select all that apply: Which issue(s) followed Chernobyl's nuclear meltdown? Select all that apply. Radiation/ Radioactive waste *** Loss of farmland *** Death rates exceeded the birth rates Mutation rates increased in both local wild life and human populations 8. Where ...

Science -- Check my answers!
Which of the following has the most significant impact on the environment? Natural Disasters Humans *** Ecosystems Carbon Dioxide Which step of the scientific method applies to the following scenario? Rick wants to know if rising carbon dioxide levels in the atmosphere have an...

Math
-9p minus 17=10 A)-3 B)16 C)18 D)-16

English
The suggestion that Jim run for student body president was greeted with enthusiasm. (with enthusiasm is underlined) a. adverb phrase*** b. adjective c. apositive phrase d. gerund phrase

Math
What is the exact value of x in the equation 3^(x+2)=5^(7x)?

English
Which line from "The Secret Life of Walter Mitty" best develops Walter's character? a. "You're not a young man any longer." b. "The Old Man'll get us through.' they said to one another **** c. " They're so d--n cocky, thought ...

Algebra I
thx @bobpursley

Algebra I
The two equal sides of an isosceles triangle are 11 feet longer than the third side. The perimeter of this triangle is 56 feet. What is the length of the third (nonequal) side?

French
Are the past perfect and past conditional used correctly in the sentence below? Si elle n'était pas devenue malade, elle aurait travaillé. If she had not gotten sick, she would have worked.

Chemistry
What do I put as percentC and atomic mass?

Chemistry
The mole mass of CO2 is 44.01 g/mol

Chemistry
Okay I got 70.28% and 29.7% Now its telling me to Calculate the percent by mass of carbon in CO2 (carbon dioxide) how do I go about doing that?

Chemistry
A compound is formed when 12.2 g Mg combines completely with 5.16 g N. What is the percent composition of this compound? Please show all work and include the percentage of both magnesium and nitrogen.

Math
Without using technology, rank these logarithms in order from least to greatest: log?62,log?36,log?10,log?20. I'm not sure how to do this question because the bases are different. Thanks!

Geometry
Help! I'm so confused :( 1. Supply the missing reasons to complete the proof. Given: angle Q is congruent to angle T and line QR is congruent to line TR Prove: line PR is congruent to line SR Statement | Proof 1. angle Q is congruent| 1. Given to angle T and line QR | is ...

Mathematics- Algebra
When I used 52 as an answer, it said it was wrong

Mathematics- Algebra
When I used 52 as an answer, it said it was wrong

math
A rope goes from one building to another. The distance between the buildings is 12m, and the rope is tied at each building at a point 8m and 3m from the ground. Find the length of the rope.

Gr 11 Chemistry-Dilutions
The cafeteria decides to save money by using concentrated acetic acid (CH3COOH at 17.5 mol/L) and diluting it with water toproduce vinegar (5.00% m/v aceticacid). a) What is the concentration of vinegar in mol/L?b) What volume of vinegar can the cafeteria produce from a 4.00 L...

Chemistry
The cafeteria decides to save money by using concentrated acetic acid (CH3COOH at 17.5 mol/L) and diluting it with water toproduce vinegar (5.00% m/v aceticacid). a) What is the concentration of vinegar in mol/L?b) What volume of vinegar can the cafeteria produce from a 4.00 L...

Finance
The Evanec Company’s next expected dividend, D_1, is $3.18; its growth rate is 6%; and its common stock now sells for $36.00. New stock (external equity) can be sold to net $32.40 per share. What is Evanec’s cost of retained earnings, r_s? What is Evanec’s ...

Math
Find the length of the shortest side of triangle ABC drawn given that the perimeter is 22. A=3x+1 B=2x+1 C=x+4

Algebra 2/ Intermediate
Your first step would be to remove the log. If log(x) = y Then x = 10^y (I'm assuming the log in the question is base 10)

Math
since distance = speed * time and (roughly) cost = #toppings * price_per_topping, what do you think?

BZZZTT! Homework Dump!
no ideas of your own?

Chemestry
how much caco3 is consumed to produce 1500 co2?

Math
thank you

Math
Sonali complete her homework iny5/6 of an hour and priya in 3/4 of an hour.who was faster?

geometry
A

Chemistry
how do you solve for bond energy, I have a test tomorrow and i do not understand this concept. Can someone please put some examples, with steps also

Spanish
Thank you so much!

Spanish
I think acabar de+ infinitivo

Spanish
which construction expresses an action that has just take place? - Hace + tiempo + que - acabar de + infinitivo - ir + a + infinitivo

Math
Marcel has 6 strips of paper. Each strip is 1 ft long. He folds each strip into 1/4 ft sections. Describle how you can draw a diagram to find the number of sections Marcel made when he folded the paper strips.

Math
The camp counselors bought a 6 pound bag of raisins for an afternoon snack for the campers. if the counselors package the raisins into 1/8 pound individual servings,how many individual servings can they make.

math
a rectangular lawn 80*60m has two roads each 10m wide running in the middle of it,one parallel to the length and the other parallel to the breadth.find the cost of graveling them at ?1.20 per square metre

History
Compare and contrast the experiences of the Creeks and Cherokees in Georgia following the War of 1812.

HVAC
what is wrong with you!

Math 6 grade unit 6 lesson 11 unit test
What are the questions

Math 6 grade unit 6 lesson 11 unit test
Pls need help with The unit 6 math test

math
3.50 is 2% of what number? answer : 175

ChEM ASAP PLZ
hmm.Yeah i balanced it

ChEM ASAP PLZ
Wait so I got 11136 g or 11.136 (not really caring about sig figs atm)

ChEM ASAP PLZ
What did you get?

ChEM ASAP PLZ
Also can someone check if my answers are right a) Calculate the moles of CH4(g) and H2O(g) in the reactor. c) What is the limiting reactant? d) If the reaction is found to have a 73.2% yield, what actual mass of hydrogen was obtained? So for c)I got H20 d) I got 200386?

ChEM ASAP PLZ
after balancing ofcourse

ChEM ASAP PLZ
n the water gas shift reaction (below, unbalanced), equal masses of methane and water were placed in the reactor and the total mass of the reactants was 274 kg. _______ CH4 (g) + _______ H2O (g) ? _______H2 (g) + _______ CO2 (g) Given: MW of CH4 is 16.04 g/mol, MW of H2O is 18...

Biology
I need help identifying the rest of a digestive structure of an earthworm. I have identified the: Mouth, Pharynx, esophagus, Crop, Gizzard, and the intestine. apparently, I am missing one more digestive structure of an earthworm.

Spanish
Llena el blanco con el verbo en subjuntivo que se te pide en el paréntesis. 1. Aunque (haber + estar) _____ allí, no habríamos visto a los androides. 2. Siento mucho que no (haber + dormir) ____ después de que viéramos la televisión.

Chemistry
A student breaks a thermometer and spills most of the mercury (Hg) onto the floor of the laboratory that measure 15.2 m long, 6.6 m wide and 2.4 m high. a) (1 mark) Calculate the volume of the room in m3 and L. b) (2 marks) If the vapour pressure of mercury at 293.15 K is 1.7...

science
how do decentralize goverment reduce environmental degradation

Chemistry
is the last part hydrochloric acid or hydrogen chloride??

Geography
so Egypt as country and Africa as the continent

Math
Jalisa is using 5/6 ward of ribbon to make bows for her party favors. Jalisa needs to make 6 bows. What is the length of the ribbon used for each bow?

Science
h

Science
How does the mass of a bowling ball that has been rolled down the lane affect the kinetic energy? A) The kinetic energy does not depend on the mass of the bowling ball. B) The kinetic energy is increases proportional to the mass of the bowling ball. C) The kinetic energy is ...

Science
Jill is making lemonade. She mixes together some water, ice, lemon juice, and sugar. The lemonade is classified as a(n) _________. A) compound B) element C) mixture **** D) solution

Science
They said the answer is C

Science
If a chemical reaction such as photosynthesis begins with 6 atoms of carbon (C), how many atoms of carbon (C) should be in the products? A) 2 atoms of carbon (C) B) 3 atoms of carbon (C) C) 6 atoms of carbon (C)**** D) 12 atoms of carbon (C)

Science
Lol. But seriously are you ok XD

Science
If water with the mass of 15.0 grams is heated into water vapor in a closed system such as a closed glass jar, what is the mass of the gas after the water completely vaporizes? A) 13.5 grams B) 15.0 grams C) 16.5 grams D) The mass cannot be determined without knowing the volume.

Science
A cold cast iron skillet is placed onto a stove top. When the stove is turned on, the skillet becomes very hot. Why does the skillet become hot? A) The skillet is losing energy (heat) to the stove. B) The stove is gaining energy (heat) from the skillet. C) The skillet is ...

Science
Thank you

Science
A solar panel and example of converting light energy to electrical energy?

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