# Questions Asked onJune 8, 2017

1. ## maths

From point AandB on level ground,the angle of elevation of the top of a building are 25degree and 37degree respectively.if |AB|〓57m,calculate,to the nearest metre,the distances of the top of the building from AandB if they are both on thesame side of the

2. ## Pre-Calculus

a ferris wheel is elevated 1 meter above ground. When car reaches the highest point of the Ferris wheel, it's altitude from ground level is 31 metres. How far away from the center, horizontally, is the car when it is at an altitude of 25 meters?

3. ## Math

On a map, 1 inch represents 120 miles. How much does 3/4 inch represent?

4. ## math

Express this ratio as a fraction in its lowest term ?25cm to 3m.

5. ## Physics

A 5 m, 10 kg seesaw is balanced by a little girl(25 kg) and her father(80 kg) at the extreme opposite ends. How far from the seesaw's center of mass must the fulcrum be placed

6. ## math

Answer of least number possible with 5 in the thousands place

asked by Jezreel Levi Tabije Cortez Edwin
7. ## Math

Find the positive square roots by factors method of 10816

8. ## Physics 11

Waves traveling along a string have a wavelength of 2.4m. When the waves reach the fixed end of the string, they are reflected to produce a standing wave pattern. How far from the end are the first 2 antinodes? I feel like I don't have enough info here...

9. ## algebra

Tom is making a punch that contains 80% cranberry juice and the rest is ginger ale. how do I write this equation 100=80 g=x

10. ## Physics

A 30-W led bulb and a 90-W led bulb are wired in the parallel to a 120-V source. You plug in a third bulb in parallel with the other two and the current increases to a 4.5-A, what is the wattage of the bulb you added? Please explain how you got the answer

11. ## science

A stone is allowed to fall from the top of a tower 100 m high and at the same time another stone is thrown vertically upwards with a velocity of 25 m/s. When and where will the two stones cross each other?

12. ## math

a machine paints 340 toy boats in 45 minutes which expression equals the unit rate per hour

13. ## chemistry

a weather balloon is filled with helium to a volume of 250 l at sea level, where pressure is 760 mm hg. assuming constant temperature, what will be the volume when the balloon raises to a height of 25 km, where the pressure is only 10 mm hg

14. ## Science , Biology

Are both of osmosis and diffusion movement of high concentration to low concentration? just a deferences of water or molecures?

15. ## Mathematics-Integration

Question: Prove that [integrate {x*sin2x*sin[π/2*cos x]} dx] /(2x-π) } from (0-π) = [ integrate {sin x*cos x*sin[π/2*cos x} dx ] from (0-π). My thoughts on the question: We know that integrate f(x) dx from (0-a) = integrate f(a-x) dx from (0-a) From

16. ## Cruz

A ferris wheel is elevated 1 meter above ground. When car reaches the highest point of the ferris wheel it's altitude from ground level is 31 meters. How far away from the center,horizontally, is the car it is at an altitude of 25 meters?

17. ## stat

the probability that a student pass a test in statistics is 2/3, and the probability that both a test in statistics and mathematics is 14/45. the probability that passes at least one test is 4/5. what is the probability that passes the test in mathematics?

18. ## Science(maths)

How many H atoms are contained in 1.50g of glucose

19. ## Science

If 1 mole of acetic acid and 1 mole of ethyl alcohol are mixed and reaction proceeds to equilibrium, the concentration of acetic acid and water are found 1/3 and 2/3 mole respectively. If 1 mole of ethyl acetate and 3 mole of water are mixed,how much ester

20. ## math

what is the square root of 25?

21. ## Science

6TH GRADE SCIENCE HELP ME FINISH MY LAST QUESTION OF SCHOLL!!!!!!!! YAYYYYYYYYYYYYYYY 21PT Please Help Explain the differences between internal and external fertilization and the advantages and disadvantages of each reproductive strategy. explain in detail

22. ## Math

Differentiate y=3secxtanx

23. ## Chemistry

Strictly speaking, NO system can be completely closed - for example, hot liquid in the best thermos eventually cools down - but for most purposes a system can effectively be “closed”. How would you create a system which is more or less closed with

24. ## Math

In Exercises 16–18, use the following information. At a college, 43% of the students are women, 15% of the students are art majors, 4% have not chosen a major, and 8% are women and art majors. A faculty member conducts an experiment and selects students

25. ## Confidentiality in Allied Health

Yolanda is reviewing a medical record for a patient who is receiving psychotherapy. As a part of her training in medical record confidentiality, she is aware that there are special guidelines regarding psychotherapy notes. Which of the following statements

26. ## Math

Vocab __?__ events, or __?__ __?__ events are events that have no outcomes in common. __?__ events are events that have one or more outcomes in common. For two __?__ events, the probability that either of the events occurs is the sum of the probabilities

27. ## math

If x−y=a and x+y=b, then x^2−y^2 is: (A) a^2·b^2 (B) a^2+b^2 (C) a^2−b^2 (D) ab (E) b−a i got c is this right?

28. ## math

If (a+b)^2=100 and (aâˆ’b)^2=64 What is the value of a^2+b^2? (A) 66 (B) 18 (C) 82 (D) 164 (E) 36 i got c

29. ## Science (soon if so)

Over the years technology has gotten a) smaller**** b) heavier c) less complicated d) more expensive What is nanotechnology? a) Nanotechnology is engineering new elements by changing their atoms***** b)Nanotechnology is a way to lengthen radio waves and

Strictly speaking, NO system can be completely closed - for example, hot liquid in the best thermos eventually cools down - but for most purposes a system can effectively be “closed”. How would you create a system which is more or less closed with

31. ## math

a/b =6, b/x =36, and a=36, what is the value of 1/x ? (A) 1/2 (B) 2 (C) 3/2 (D) 4 (E) 6 i got e

32. ## Chemistry

I need help with completing an equation. It is a skeletal formula that includes HOOC, HO, Cl and then MgO is added to it. I am not sure how to even begin this equation but it is unlike the previous balancing that we have done.

33. ## math

(a−b)/2 =3 and xa − xb = 12, then x = (A) −1 (B) 1 (C) 2 (D) 4 (E) It cannot be determined from the information given. i got c

34. ## Physics

Hello, I am wondering if someone can answer me this question: In an Atwood machine why do the tensions that handle both bodies are the same? (English is not my native language)

35. ## Math

In Exercises 16–18, use the following information. At a college, 43% of the students are women, 15% of the students are art majors, 4% have not chosen a major, and 8% are women and art majors. A faculty member conducts an experiment and selects students

36. ## Algebra

Janice can type in 30 min Bianca can type in 45 min how long if they work together

37. ## math

If a+b=6, b+c=−3, and a+c=5, what is the value of a+b+c? i am not sure how to solve this but would you do this to solve it: A+B+B+C+A+A+C=6+-3+5

38. ## Science.

A Car is travelling at 20 km/s along a road . A child runs out into the road some ahead and the car driver steps on the brake pedal.What must the car's Acceleration be if the car is to stop just before it reaches the child?

39. ## Math help asap

PQRS is a rectangle. One side is on the X axis, vertex s is located at (5.4) state two possibilities for coordinates for the other vertices.

40. ## Math

In Exercises 16–18, use the following information. At a college, 43% of the students are women, 15% of the students are art majors, 4% have not chosen a major, and 8% are women and art majors. A faculty member conducts an experiment and selects students

41. ## Mathematics

State whether this infinite series converges or diverges? 1+(t) + (t^3)+...... t=[(5x+6)/(3x-2)] My thoughts on the question: The sum of 'n' terms in a geometric progression is a[r^n - 1]/(r-1)--(let's calk this 1), where r>1 and when r

42. ## English

Are these correct or not? I can't hardly see you. The children were real excited when they made the team, they jumped up and down noisily.

43. ## Mathematics - Complex numbers

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44. ## value

What happens when lead oxide is treated with hydrogen.Reason

45. ## Math

Two events are __?__ events if they are disjoint events and one event or the other must occur.

46. ## Chemistry

Question: At 300 K,Carbon powder and O2 are included in container of 10dm3.When the system is heated well,all the O2 converts into CO2.Then the system is cooled to the initial temperature. The volume of the Carbon powder is negligible. Find the percentage

47. ## Science

Earth is sphere yes or No

48. ## Anatomy

Describe the consequences of not removing waste products from the body such as CO2, urea, and salts.

49. ## math

Round the following percentage to two decimal places. 0.068%

50. ## can someone help me?

What conditions account for the boom-and-bust cycles experienced by Washington’s economy in the latter half of the 20th century?

51. ## geometry

Ray AD is the angle bisector of angle ABC. m∠ABC is 168°What is the measure of ∠DBC?

52. ## Probability and math statistics

We have two coins, C0 and C1, that looks identical but have different probabilities (0.5 and 0.7 respectively) of showing Heads. A coin is chosen at random and then is tossed X times until a Head comes up. Denote by H0 and H1 the hypotheses that the chosen

53. ## history

How do you think this resolution influenced later u.s. policy in southeast asia? gulf of tonkin resolution?

54. ## Math

At noon temperature was38degree Celsius.temperature decreases at rate of 6 degree Celsius per hour. What will be the temperature of room after....... Hours

55. ## algebra

how many liters of distilled water must be added to 80 liters of 60% acid solution to obtain a 50 % acid solution?

56. ## Math

After deducting10% from sum and then 20% the remainder₹3600 are left.Find the original amount

57. ## Math

Add or subtract, then express the sum of difference in simplest form. 5/4+1/2

(x-4)^(3/2)

59. ## Math

im having a hard time with polynomials it just shows shapes and i dont understand, if somebody could help that would be great :) Which polynomial does the model represent? The picture shows a big black square, 2 white rectangles 1 black rectangle 1 little

60. ## forensic science

"In fluorescence microscopy, the wavelength of the emitted light is __________that of the exciting radiation." Longer than Shorter than Equal to Either longer or shorter than Impossible to determine My answer is Longer than am I correct

61. ## Math

After deducting10% from sum and then 20% from the remainder₹3600 are left.Find original amount.Solution

62. ## math

I have 156 hundreds,290 tens,5 ones solve it

63. ## English

........ of the books of ali have blue colour. We can use some and none in the blank. But what do you think about 'any'in this blank. Is it correct.

64. ## Algebra 2 help please.

The average daily minimum temperature for Pablo’s hometown can be modeled by the function f(x)=15.3sin(πx6)+44.1 , where f(x) is the temperature in °F and x is the month. x = 0 corresponds to January. What is the average daily minimum temperature in

(x-4)^(3/2)

66. ## math

Which of the following does not always bisect at least one side Midsegment Perpendicular bisector Median Altitude

67. ## math

a town's population went from 25,8000 to 42,600 in 15 years. What is percent of change?

68. ## math

(x-4)^(3/2)

Anna mixes the letters S, E, L, E, C, T, E and D thoroughly, without looking, Mary draws one letter. Expressed as a fraction, decimal, and percentage, what is the probability that E will not be the letter mary selects A 3/8 0.375 37.5% B 8/5 1.6 16% C 5/8

70. ## Math

A van leaves town x at 6:45am and travels towards town y ,400km away at an average speed of 80km/hr.At 8:00am a truck left y for x at an average speed of 60 km/hr.at what time will the two meet.

71. ## math-limit

Lim x>0 (sqr5+x-sqr5)/x

72. ## Science

The mass of sodium carbonate required to prepare 250ml of 0.4N solution is

The average daily minimum temperature for Pablo’s hometown can be modeled by the function f(x)=15.3sin(πx6)+44.1 , where f(x) is the temperature in °F and x is the month. x = 0 corresponds to January. What is the average daily minimum temperature in

74. ## Calculus

the region D is the triangle with vertices (1,1) (3,1) (3,2) about the y-axis find r(x) and h(x) using the shell method. My teacher got r(x)=x and h(x)=(1/2x+1/2)-1 but how did he get the equation for h(x)??