# Questions Asked onJune 16, 2017

1. ## algebra

nestor has nickels, dimes, and quarters amounting to \$1.85. if he has twice as many dimes as quarters, and the number of nickels is two less than twice the number of dimes, how many quarters does he have?

2. ## Physics 11

Glycerine has an index of refraction of 1.47. What is the critical angle for a light ray traveling from: a)Glycerin into air b)Glycerin into water a) I know- n1=1.47 n2=1 angle of refraction=90 1.47(sin.anglei)= sin90 1.47(sin.anglei)=1 sin.anglei=0.6803

3. ## algebra

if log xy=6 and log x/y=2. solve for x and y

4. ## Math

A town y is 200km from town x in a direction 040 degree. How far is y east of x?

5. ## Algebra 2

Graph a sine function whose amplitude is 5, period is 6π , midline is y=−2 , and y-intercept is (0, −2) . The graph is not a reflection of the parent function over the x-axis. im not so sure how i would graph this :/

6. ## physics

One second after being thrown straight down an object is falling with a speed of 20m/s. How fast will it be falling 2 seconds later

7. ## PreCal

Find a quadratic function with real coefficients whose zeros include 1+the square root of 3i.

8. ## Physics

Robin Hood is known for stealing from the rich to give to the poor. He finds himself surrounded by some angry noblemen who demand he return their gold chest. Outnumbered, he takes an arrow from his quiver and fires it straight into the air, scattering the

9. ## forensic science

Quantization is Interaction of electromagnetic radiation and matter at discrete energy levels The ion separator in a mass spectrometer Chemical ionization The bombardment of an analyte by a stream of energetic electrons Inelastic scattering My answer is

10. ## physics

with what minimum acc can a fireman slide down a rope whose breaking strenght is two third of his weight ?

11. ## Science

A body of mass 10kg is moving with velocity 10m/sec.The work done to stop the body is : A) 500J B)-500J C)1000J D)-1000J How to calculate the answer?

12. ## algebra

the sum of ages of maria and anna is 35. when maria was two-thirds her present age and anna was three fourths of her present ages, the sum of their ages was 25. how old is maria now?

13. ## Social Studies

1) Why did the Dredd Scott case cause such a national conversation about a slave’s rights? Do you agree with the final verdict that the Supreme Court handed out. Explain. Pretty please help me :)

14. ## Social Studies

Why was Abraham Lincoln’s #1 goal to preserve the Union?

15. ## Time rates

sand is being dragged at the rate of 10m^3/min into a conical pile. if the height of the pile is always twice the base radius, at what rate is the height increasing when the pile is 2m high?

16. ## math

a + bc = -1 b + ac = -1 c + ab = -1 Which of these values of 'a' is one solution for this system of equations? A) -2 B) -1 C) 0 D) 2 Please also explain how you got the answer, thanks.

17. ## Math-Algebra

Tony asked his friend to guess his mathematics test score. He gave these hints to help his friend guess: -It has two digits -The digit in the tens place is two more than twice the digit in the ones place. -The number formed by reversing the order of the

18. ## Math

A student is asked to find positive integer solutions to this equation: 2 * 3 √x = 5 √y What is the smallest possible value of xy? (Please show working out, thank you.)

19. ## College - Unweighted GPA

On my college application, am I supposed to give my GPA for my senior year only or my total GPA? On my college application: What was your unweighted high school GPA (grade point average)? Please enter a value between 0.00 and 4.00. If you are still in high

20. ## Algebra 1

Simplify -(2xy^3)^-5 A: -32x^5y^15 B: -32/x^5y^15 C: -1/32x^5y^15 D: -1/32x^4y^2 I have a good understanding of Exponents, its just that I don't get this one. I feel like it is C but at the same time I feel like it is B. I got C though but I don't

21. ## Math

An ostrich at the zoo weighs 3 times as much as Marks's pet dog. Together, the ostrich and the dogweigh 448 pounds.how much does the ostrich weigh? Please help.

22. ## sir steve reiny bob damon need help maths

if the result of a function that produces the product of 16/25 and the reciprocal of the product of 4 and the sqare of the input and the sum of 1 and difference of 12/5 of the input is 1, find the square root of the function.

23. ## physics-density

A solid right circular cone of uniform mass density is initially at rest above a body of water, so that its vertex is just touching the water's surface with its axis of symmetry along the vertical. Now, the cone falls into the water, and has zero speed at

24. ## chem

A greenish blue salt known to be composed of copper and chloride ions is dissolved in DI water. Aluminum metal is used to reduce the copper ions to metallic copper, which is collected, dried and weighed. If the origanal sample has a mass 1.362g and the

25. ## math

An elevator starts out at the 1st floor. It goes up 4 floors, down 2 floors, up 5 floors, down 3 floors, up 2 floors and stops. What floor is it now on?

26. ## Math

How do you complete the square for this: y= -1/3x^2 + 2x + 4

27. ## La

Can someone help me with la connexsus unit 3 lesson 12?

28. ## Art History

Describe the basis (theories and ideals) of the following movements: a) surrealism, b) dada, c) cubism, d) minimalism. Is this okay? Surrealism is an art movement that pushes artists away from working with logic when creating art, and instead work with

29. ## Physics 11-Ray Diagrams

I'm doing a ray diagram with an arrow leaning away from a plane mirror. The rays leading from the tip of the arrow to the image on the other side of the mirror lined up perfectly, however for the rays leading from the end of the arrow I can't seem to line

30. ## math

Find the missing value to the nearest hundredth. tan (?) = 15

31. ## Math

The ratio of the blue markers to red markers is 3:7. If there are 40 total markers in the bucket,how many of the markers will be blue

32. ## Math

Solve. (-10x^3+30x-20) / (-5x+5) A) 2x^2-2x+4 B) -2x^2-2x-4 C) -2x^2+2x+4 D) 2x^2+2x-4*** Simplfy x/6x-x^2 A) 1/6-x; where x=0,6 ***** B) 1/6-x ; where x= 6 C) 1/6x ; where x = 0 D) 1/6 Simplfy x-2/x^2+4x-12 A) 1/x+6; where x=-6 B) 1/x+6; where x= -6,2***

33. ## superb

a partical moves on circular of radius 30cm its liner speed is given by v 2t find the radial and tangantial acclartion at t 3sec

34. ## math/statistics

In a survey of 400 individual investors regarding subscriptions to the New York Times (NYT), Wall Street Journal (WSJ), and USA Today (UST), the following data were obtained. 120 subscribe to the NYT. 146 subscribe to the WSJ. 68 subscribe to the UST. 36

35. ## Econ Online

Analyze what happens to the market for cheeseburgers if the price of the cheese rises (cheese being the part of the cost of a cheesburger). Be specific and explain (or is not affected) for each of the following: 1. supply curve 2. the demand curve 3. the

36. ## Chemistry

Is the NO3- single bond length shorter than NO2H single bond length? Based on Lewis structure of it.

37. ## lmatha

Bhupendra borrowed rs 6300 for a period of 2year 8month at 7%rate of interest per annum.find out how much amount he has to repay.

38. ## maths

Find out the compound interest of a sum of rs 10000 for 2year at a rate 8%per annum. If the interest is added yearly

39. ## maths lit

Calculate the simple interest and the sum accumulated for R5000 borrowed for 90 days at 15% per annum

40. ## math

What percent is 250 of 1200

41. ## Math

Robin has 7 red beads, 27 purple beads, and 24 yellow beads. She wants to make a necklace with the pattern; red bead; 3 purple beads; 2 yellow beads. How many times can she repeat the pattern? Which color of beads will she run out of first?

42. ## Math

Jonas wants to give away 564 trading cards to his friends. He wants to give the cards equally to either 2,3,5,6,9 or 10 friends. To how many friends can Jonas equally give trading cards to?

43. ## Physics

2 charges of 16 microculomb and 25 microculomb are separated by a distance of 2 metre apart.If another charge of 5 microculomb is placed in the middle of the line joining the 2 charges.Then what is the net force on the 5 coloumb charge

44. ## satistics

Suppose that the antenna lengths of woodlice are approximately normally distributed with a mean of 0.2 inches and a standard deviation of 0.05 inches. What proportion of woodlice have antenna lengths that are more than 0.27 inches? Round your answer to at

45. ## history

Why was it smart for European colonial powers to wield power in their newly-acquired colonies through indirect rule? Can you draw parallelisms with previous dominant civilizations?

46. ## Chemistry

Hello I have a question relaté to nucleophiles. Is The alcohol CH3OH a nucleophile or only its ion CH3O- ?

47. ## Science

A small toy car moves around a circular track onces in every 8s. The radius of track is 3m. Find the speed of car.