# Questions Asked onJanuary 20, 2018

1. ## maths

Find the equation to the cone whose vertex is the point (a,b,c) and whose generating lines intersects the conic px2 + qy2 = 1, z = 0.

2. ## LA

Which of he following answer choices contains a metaphor? •his skin was sandpaper •The sun sparkled like a diamond •She wanted to be like the birds and fly away •they felt free when they ran through the doors

3. ## Chemistry

A 35.1g sample of solid CO2 (dry ice) is added to a container at a temperature of 100k with a volume of 4.0L. If the container is evacuated (all of the gas removed), sealed and then allowed to warm to room temperature (T=298K) so that all of the solid CO2

4. ## Chemistry

(A) calculate the density of NO2 gas at 0.970atm and 35 Celsius. (B) calculate the molar mass of a gas if 2.50g occupies 0.875L at 685torr and 35 Celsius. Answers are 1.77g/L 80.1g/mol

5. ## Chemistry

Rank the following gases from least dense to most dense at 1.00atm and 298 K:CO, N20, Cl2, HF.

6. ## Chemistry

Which equation will you use to calculate the volume of a 5.00-liter sample of air at 50°C when it is warmed to 100°C at constant pressure?

7. ## Physics

A charge +q is at the origin. A charge -2q is at x = 6.30 m on the +x axis. (a) For what finite value of x is the electric field zero? (b)or what finite values of x is the electric potential zero? (Note: Assume a reference level of potential V = 0 at r =

8. ## Physics

The readings on a high resistance voltmeter, when a cell is connected across it, is 2.2 V . When the terminals of cell are also connected to a resistance of 5 ohm the voltmeter reading drops the 1.8 V. Calculate the internal resistance of cell

9. ## math

I NEED HELP In a survey four out of the seven people named blue as their favorite color one out of three named red. If 1092 people were included in the survey how many named neither blue nor red as their favorite color A)192 B)104 C)148 D)212

10. ## history

What did Simón Bolívar promise Alexandre Pétion in exchange for weapons and Haitian troops? A.to promote international trade with Haiti B.to end slavery in Venezuela C.to support Pétion’s bid for reelection in Haiti D.to invade the Dominican Republic

11. ## Physics

A fisherman's scale stretches 3.6 cm when a 2.7-kg fish hangs from it. (A) What is the spring stiffness constant? (B) What will be the amplitude and frequency of vibration if the fish is pulled down 2.5 cm more and released so that it vibrates up and down?

12. ## English

Which of the following sentences contains a verb in the subjunctive mood? A:All me to introduce myself B:If water reaches 32 degrees, it turns to ice. C:I wish you had more confidence in yourself*** Which of the following sentences contains a verb in the

13. ## Chemistry

What change would occur in the kinetic energy of vapor if a container of vapor is placed at 0 Kelvin? A.The kinetic energy of gas particles will increase. B.The kinetic energy of gas particles will decrease. C.The kinetic energy of gas particles will

Jacque's clock strikes every 15 minutes. how many times does it strike in a week? A: 96* B: 28 C: 2,250 D: 672 I'm pretty sure its A, but i'm not sure how to do the problem. Can someone tell me if its right or point me in the right direction?

15. ## Math

If you toss a fair coin and you toss until a head is followed by a tail. What is the probability that at least 5 tosses are needed for this to occur?

16. ## Maths

Minah and rohana had a total of \$338 at first. After minah’s mother gave her another \$49 and rohana spent half of her money, they both had the same amount of money. How much did Minah have at first?

17. ## Science

Determine the mass of lead chloride precipitated when 5g of sodium chloride solution reacts with lead trioxonitrate v.

18. ## Maths

A man spent one fourth of his monthly salary on rent, two fifth of the remaining on food and one sixth of still remained on drinks. What fraction did he spent on drinks

19. ## Geometry

A circle has a 3cm radius. 1. By what factor does the circumference change if the radius is tripled? Explain. 2. By what factor does the area change if the radius is doubled? Explain.

20. ## geometry

I need help with figure E Find the areas of the following figures. FIGURE A = 24? a rhombus with a perimeter of 20 meters and a diagonal of 8 meters FIGURE B = 120? a rhombus with a perimeter of 52 meters and a diagonal of 24 meters FIGURE C = 10.83? an

21. ## Math

on a map whose scale is 1:50000 a piece of land is represented by a rectangle measuring 3 cm by 2 cm. What is the actual size of this land in hectares?

22. ## Statistics and Probability

A box contains 4 red and 5 blue marbles. Michele picks three marbles at random from this box. If Z is a random variable representing the # of blue marbles picked from the box, do the following. a. Express the probability mass function of Z in tabular form.

23. ## Physics

The speed of the tip of a second hand of length 5 cm of a clock is m/s

24. ## Chemistry

C3H8 +________O2 ---------3CO+4H2O . Which is the balance the reaction A. 1 B. 7 C. 5 D.3

25. ## Chemistry

'Would the probability factor in the rate equation be greater or lower if the particles colliding were individual atoms instead of molecules? ' I want to say it would be lower because atoms have less kinetic energy than molecules due to their lesser mass,

26. ## English

Which would best describe Gray's feeling's about death?(Elegy Written in a Country Churchyard) A:Death is incredibly sad. B:Death is not concerned with a man's wealth.*** C:Death is not something to give much thought to. D:Death is of greater concern to

27. ## math

The triangles below are similar. Find the value of x. The first triangle has 5 on the right and left side and 4 on the bottom. The second triangle has 9 on the right and on the left side and x is at the bottom. A)8.2 B)7.8 C)7.2 D)6.8

28. ## Science

How are frogs able to alter the amount of cutaneous respiration that occurs?

29. ## maths

Find the projection of the line 3x – y +2z – 1 = 0, x +2y – z = 2 on the plane 3x + 2y +z = 0.

30. ## Math

How many prizes are there if 120 tickets are sold

31. ## Chemistry

Which of the following is NOT an assumption about an ideal gas? A. There are no intermolecular forces of attraction. B. The molecules do not collide with each other. C. The molecules have no kinetic energy. D. The molecules occupy no volume.

32. ## Chemistry

What is the concentration in %m/m if 3.6g of NaCl dissolved in 400mL of water?

33. ## Statistics

In a village with a population of 1500,the probability of a person falling sick is 0.002. Find the probability that a)3people fall sick in a week b)less than 3 fall sick in a week c)at most 3 fall sick in a week d)more than 2 fall sick in a week

34. ## Physiology

1.During which stage of cellular respiration is most ATP made? C A. Glycolysis B. Chemiosmosis C. Electron Transport Chain D. Citric acid Cycle 2. The anticodon is part of a(n) ____ molecule and the codon is part of a(n) ___ molecule? B A. tRNA...rRNA B.

35. ## History

I'm currently writing a presentation on Joe Foss, in my presentations are bullet points of accomplishments and his basic information. I was wondering how i would make the summary, would I use bullet points of the same information or would I write a

36. ## English

I'm writing a personal essay about a novel. Every time I use the title of my novel in the my essay my teacher wants me to underline it. For one part of the essay I'm supposed to talk about if the author has published any other novels. I was just wondering

37. ## Biology

1% of sloths within a population show the recessive trait of a certain characteristic. This population is in HW Equilibrium. What is the value of p if p represents the dominant allele? a)0.99 b)0.9 c)0.81 d)0.18 I know the answer is B, but why? 0.09

38. ## Geography

Wat is d full meaning of CRC and define plszzz

39. ## Physiology

1. Atp synthase is an enzyme in the. C A. NUCLEUS B. CELL MEMBRANE C. MITOCHONDRIAL MEMBRANE D. MITOCHONDRIAL MATRIX 2. Each condon on a(n) ____ molecule encodes for ___ amino acids. B A. mRNA...one B. mRNA....three C. tRNA...three D. tRNA...one 3. Two

40. ## Social Studies

Can anyone give me a link to a short article on immigration from Latin America. Whenever I search for one I only find really long articles. I need to easily summarize the article.

41. ## MATH8

cost price of an article is rupees500 it is sold at 25/2% gain. sales tax charged is 15%what amount is payable by customer.

42. ## math

Miniature cactuses usually cost £25 but have a sale price of £20. what is the percentage decrease in the price of miniature cactuses?