1. MAth 109

The formula d= square root of 3h/2 models the distance, d, in miles, that a person h feet high can see to the horizon. If the pool deck on a cruise ship is 80' above the water, how far can passengers on the pool deck see? Write the answer in simplified

2. Physics

What is the tension in the string in (Figure 1) ? The volume of plastic ball is 95 cm3 and the density is 840 kg/m3.

3. maths

If 7=56,then 10=? A)74 B)65. C)50. D)90

4. Calculus

My teacher wants me to use this formula for half life question C(t) = Ce^-kt but i used a different formula plz help. the question is: A radioactive isotope has a half life of 30 years. If we started off with 10 mg of this isotope 12 years ago: a) Find and

5. Math Functions

Write two equations to represent the same exponential function with a y-intercept of 5 and an asymptote at y=3 . Investigate whether other exponential functions have the same properties. Use the transformations to explain your observations.

6. St Kabir

Find theta if sin(theta+36°)=cos theta where theta +36 is an acute angle

7. Physics

A pole-vaulter just clears the bar at 4.42 m and falls back to the ground. The change in the vaulter's potential energy during the fall is -3800 J. What is his weight?

8. science

A boy is riding a skateboard. Why does the skateboard have the ability to do work? because it can slow down because the force applied by the rider acts in the opposite direction as the motion of the skateboard because it can change direction because the

9. Language Arts

What lesson or meaning do you think the story "The Mark of the Beast" by Rudyard Kipling, held for the British audience of the Victorian era?

10. stats

glucose level in patients free of diabetes are assumed to follow a normal distribution with a mean of 120 and a standard deviation of 16. (20 pts) What proportion of patients has glucose levels exceeding 115?

11. statistics

A lottery offers one \$10000 prize, one \$5000 prize and five \$1000 prizes. 1000 tickets are sold at \$30 each . Find the expectation if a person buys one ticket workings: 9970/1000+4970/1000+4850/1000-29790/1000 = -10000/1000 =-\$10

12. ssc..math

A tree 30 feet tall casts a shadow 7 feet at the same time that a flagpole casts a shadow 5 feet .Find the height of the flagpole .

13. physics

8. Two blocks of masses 50 Kg & 30 Kg, lie on two smooth inclined planes of 30° and 60° through a light rope which passes over a smooth pulley at junction of two planes. Calculate common acceleration and tension in rope

14. art/125

example the relationship between art and popular culture?

15. Physics

a full draw is the maximum distance that an archer can pull an arrow. Using the recurve bow shown below, a particular archer requires an average force of 130N to pull a full draw of 70.0cm. (when the arrow is relaxed in the bow, there is a distance of

16. writing

15. Once you acquire these two basic skills, you'll be able to transform a vague idea in your mind into a coherent piece of writing.

17. math

Mercury is a metal, which is liquid at room temperature. Its melting point of alcohol is 39 Celsius the freezing point of alcohol is-114 Celsius. how much warmer is the melting point of mercury than the freezing point of alcohol?

18. Math 156

What is the greatest prime you must consider to test whether 7356 is prime? Thanks for the help.

19. Algebra 2 (probability)

Sara has 5 flower pots with a unique flower. The pots are arranged along a line. One day she decided to change their order the condition that no pots that were originally next to each other remain next to each other. Find out the number of possible orders

20. Maths

A ruler is 10 cents more than a pencil. If 2 rulers and 5 pencil costs 3.70 dollars, how much is the cost for a single pencil?

21. Math

A manufacturing company is thinking of launching a new product. The company expects to sell \$950,000 of the new product in the first year and \$1,500,000 each year thereafter. Direct costs including labor and materials will be 45% of sales. Indirect

22. math

How many license plates can be made if each should have 3 letters of the English alphabet with no letter repeated ? what will be the answer if the letters can be repeated?

23. Math

What is the greatest prime you must consider to test whether 7356 is prime?

24. Data management

Which of the following three events is more likely to happen that a person get a) At least 1 six when 6 dice are rolled; b) At least 2 sixes when 12 dice are rolled, or c) At least 3sixes when 18 dice are rolled. Explain why.

25. math

Equations solve by matrix method (1) x+y+z=3 (2) x+2y+3z=4 (3) 2x+4y+9z=6

26. src

the 4th term of an arithmetic progression is 27 and the sum of the 1st and 4th term is 42. What is the third term

27. math

solve -8/15 a = 9/10

28. Physics

Canadian geese move up and down on the surface of a lake. If one moves up and down 15 times a minute and you estimate the distance between the wave crests to be 1 m, determine the speed of the water F = rpm F = 15/60 F = .25 V = wavelength * Frequency v =

29. Maths

3 inlet pipes A,B and C can be used to fill 1000m^3 water storage tank . When 3 pipes are in operation,the tank can be filled in 10hours .When only pipes A and B are used,the time increases to 20 hours. With pipe A and C, the tank can be filled in 12.5

30. calculus problem I have tried 100 times

A tank in the shape of an inverted right circular cone has height 5 meters and radius 4 meters. It is filled with 2 meters of hot chocolate. Find the work required to empty the tank by pumping the hot chocolate over the top of the tank. The density of hot

31. math- partial fractions

how do you i do the partial fraction for 1/(s^2)(s^2 +2s +3)

32. Nat Sci

why when the granite decompose it converts to clay? and what is the simplest meaning of B horizon. i don't fully understand the things i've read about b horizon on net. please help me

33. chemistry

To what volume should you dilute 47.0 mL of a 5.95 M KI solution so that 27.5 mL of the diluted solution contains 3.50 g of KI?

34. math

Solve (1) TTX=2 (2) 3x+2=5x+7-2x (3) 6x+2-4x=5+2x-3

35. Calculus

Find the derivative of the following functions using the f prime of x = the limit as h approaches 0 of f(x+h) – f(x) all over h a)ƒ(x) = x2 + 5^x b)ƒ(x)= 1/2^x

36. cal

Show that the limit as h approaches 0 of (e^h-1 ) all over h = ln e = 1 using at least two numerical examples.

37. Calculus

Show that the limit as h approaches 0 of (e^h-1 ) all over h = ln e = 1 using at least two numerical examples.

38. Math

Show that the limit as h approaches 0 of (e^h-1 ) all over h = ln e = 1 using at least two numerical examples.

39. Chemistry

What are some errors that can be made in colorimetry?

40. Math

I am doing estimating Standard deviation of grouped data. I have done all the sum freg 60/ midpoint 2580/ x bar is 43 for all/ and total with x bar is 10260. Can you explain how to get the variance and sq root from these. I know that you have to

41. algebra

When my answer is 4=x and I rewrite it as x=4, is that illustrating a property? Why am I able to do that?

42. math

solve 7/10 d = 21/20

43. Physics

An officer is investigating an accident. A car has struck a pedestrian at a school crosswalk.There are no witnesses to the accident. The officer measures the coefficient of friction at the accident site to be 0.55, and he measures skid marks that are 52m

44. Algebra

m+7/m^2+4m-21

45. organic chemistry

What does delocalization mean? what is the difference between non delocalizabe and delocalizable? Thank you in advance..