# 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 100Â°, mG is 40Â°, and mH is 40Â°. 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?