# Questions Asked onJuly 10, 2016

1. ## Math

Bobs car gets 23 miles per gallon of gas. If bobs car is traveling at a constant rate of 69 miles per hour, how may gallons of gas will his car use in 40 minutes?

2. ## Math

From a window A,10m above the ground, the angle of elevation of the top C of a tower is x degrees,where tan X=5/2 and the angle of depression of the foot D of the tower is y degrees, where tan y=1/4.calculate the height Cd of the tower in metres.

3. ## math

what is the ninth angle of a nonagon if the others are each 124 degrees

4. ## Chemistry

Given the following three electron configurations: 1s2 2s2 2p5 How many core electrons does this element have? A. 4 B. 5 C. 9 D. 2

5. ## Chemistry

A 1.00 g sample of limestone is allowed to react with 100 cm^3 of 0.200 mol/dm^3 HCl. The excess acid required 24.8 cm^3 of 0.100 mol/dm^3 NaOH solution. Calculate the percentage of calcium carbonate in the limestone

6. ## mathematics

A box contains 40 oranges,12 of which are unripe.i pick one at random.what is the probability that it is (a)ripe, (b)unripe?

7. ## English composition

i just wanna ask if this is correct. i was making a prewritng classification and division. is not finish yet but i just wanna ask if im having a good start thanks Title: Genres of movies Topic announcement: Horror movies Introduction: It is fun to watch

8. ## math

Of the three angles of a triangle one is twice the smallest and another one is thrice the smallest. Find the angles

9. ## math

One hundred cards are numbered from 1 to 100. What will be the probability that a randomly chosen card has a digit 5?

11. ## Maths

I have a sum which I share with u.. Perimeter of rectangle is 2.4m less than (2/5) of perimeter of square. If the perimeter of square is 40m then find the length & breadth.. Given breadth is (1/3) of the length.. I have also a solution which I wnna be

12. ## Pre Calculus

Determine two coterminal angles (one positive and one negative) for θ = −503°. a. 217°,− 323° b. 217°, − 143° c. 307°, − 413° d. 127°, − 323° e. 127°, − 233°

13. ## Math

A company selling cell phones has a total inventor of 800 phones. Of these phones, 400 are smartphones and 240 are black. If 200 phones are not black and not a smartphones, how many are black smartphones?

14. ## Psych

One major reason that groups tend to take greater risks than their members would take as individuals is

15. ## science

Athlete of mass 70.0kg runs a 1000m race in 10 seconds calculate the kenetic energy possessed by the body

16. ## Math

Consider the following word problem: It took Eric 10 hours to drive to a job interview. On the way home, he was able to increase his average speed by 21 mph and make the return drive in only 7 hours. Find his average speed on the return drive. Step 1 of 3:

17. ## Econ

Please help me and review my answers for my quiz. Let me know which ones you believe to be right and wrong. 1. When P = AR = MR = AC = MC: X economic profits are positive. economic profits are zero. economic profits are negative. normal profits are zero.

18. ## Math

2. The following is a random sample of grades achieved on statistics examination by 10 male students in a very large class and a random sample of grades achieved by 8 female students. Male 78 87 75 64 90 80 65 86 74 81 Female 71 50 80 75 90 61 85 81 Test

19. ## narayana

A person throws a bottle into dustbin at the same height as he is 2 m away at an angle of 45 degrees the velocity of thrown is?

20. ## science

What mass of limestone will produce 11.2g of lime

21. ## math

There were 369 tickets purchased for a major league baseball game. the lower reserved tickets cost \$9.50 and the upper box tickets costs \$10.00. The total amount of money spent was \$3645. How many each kind of ticket were purchased?

22. ## Chemistry

Which of the following atoms would have the highest first ionization energy? A. Li B. Be C. Na D. Mg

23. ## science

Why is ozone can be describe as our friend

24. ## sarangz

a bus weighing 50 tonnes moving with a velocity of 60km/hr.Calculate the force required to stop it in 10 seconds.

25. ## Math

Use the value sin x = 1/ 2 and cos x > 0 to find the values of all six trigonometric functions. Leave your answer in exact form, not in decimal

26. ## English

I had to pick a sarcastic quote from A Modest Proposal. I just wanted someone to check it to make sure it sounds sarcastic to them as well. I chose, "I grant this food will be somewhat dear, and therefore very proper for landlords, who, as they have

27. ## Assembly language

For this project, you will write a MIPS assembly language program to calculate periodically compounding interest. Your program should prompt the user to enter the necessary parameters for the calculation and continue to loop until the user opts to quit.

28. ## Mat221

Evaluate the expression when b=4 and x=-7. -b+8x -b+8x = 4+8(-7) = 4+-56 = -52

29. ## Math

The Abc company sells bottles of shampoo for \$9 each. It costs the company \$3 to make each bottle and they have fixed costs of \$4700 each month. If x represents the number of bottles the company makes and sells each month, write he company's profit

30. ## Math

At a party one hundred and twenty people danced. The girls all started dancing one after the other. Tina was first girl who danced with seven men,Reena the second girl who danced with eight men, Sheela the third girl who danced with nine and so on up to

31. ## PHYSICS

A mass of 2kg is dropped from a height of 3m.Neglecting air resistance,KE of the stone just b4 it hits the ground is ?

32. ## math,maths

solve (x+2)/x>=0.2 with steps

33. ## Physics

“A rifle shot with a velocity of 270m/s at a target that is 400m away.if the shooter wants to directly hit target and what angle he must gire

34. ## Social studies

Suppose,you got opportunity to meet with a Gorkhali solider on the occasion of the hundred years of the first world war.on the basis of your talking with him regarding places where Gorkhali soldier fought,lessons that they learnt and it's effects in

35. ## chemistry

100 mL of 0.05 M NH3 solution are added to 60 mL of a 0.1 M solution of the same compound.Determine the concentration of the final solution.

36. ## chemistry

In the gaseous phase PCl5 dissociates according to the following equilibrium: PCl5⇌PCl3+Cl2 and Kc=0.8 at 613K .Determine the equilibrium composition when 0.12 moles/L of the three compounds are mixed at 613K.

37. ## Health

explain how heredity and lifestyle can both influence the onset of genetic disease.

38. ## Pre-Calculus 11

What is the entire radial form of -3* cube root of 2? I go cube root of 54 as my answer but it is wrong

39. ## Socials Studies

What do you think were the three greatest risks a fugitive slave might face on the underground railroad?

40. ## Math

One site added 0.5 million new accounts everyday. At this rate how many days will it take to add 25 million new accounts

41. ## Socials Studies

Explain why few Black people, Native people, or other minorities became involved in the Rebellions of 1837

42. ## science

A particle is dropped from height 100m and

43. ## Pre-calculus

Equation of the parabola with the vertex (0,3), axis parallel to OX, passing through (4,9)

44. ## Social studies

Suppose you met a student leader who had involved in the movement of 2036B.S.?prepare a model of article to publish in the newspaper accomplishing the causes and cnsequençes of movement of 2036B.S on the basis of his views.

45. ## maths

(x+y)^2=x^2+2xy+y

46. ## math

Good pm, please help me to my homework. Thank you How to calculate an ordinary interest given a principal rate of 500,00 , at a rate of 18%, that will be due within 394 days? Find the ordinary interest

47. ## Physics

a car which 100 m away from a polic station and is initially at rest started running at 80 m/s. How far wil the car be from the police station after 20 seconds