# aaron

Popular questions and responses by aaron
1. ## Calc

The rate (in mg carbon/m3/h) at which photosynthesis takes place for a species of phytoplankton is modeled by the function below, where I is the light intensity (measured in thousands of foot-candles). P = (120 I) / (I^2 + I + 1) For what light intensity

11. ## Programming concepts

Develop a menu-driven program that inputs two numbers and, at the user’s option, finds their sum, difference, product, or quotient. top-down modular approach and pseudocode to design a suitable program to solve it. I am having so much trouble with this I

12. ## Calculus theory

Determine if the statement is always true, sometimes true, or never true. If y is a function of x, and is also a function of t. then dy/dx = dy/dt explain. i think its sometimes true but i don't know why it is. am i right?, and can you please explain me y

13. ## English

Identify the sentence pattern used below. I e-mailed my English Teacher my essay. My answer is subject verb

14. ## Math

1) The hypotenuse of an isosceles right triangle is 8 cm longer than either of its legs. Note that an isosceles right triangle is a right triangle whose legs are the same length. Find the exact length of its legs and its hypotenuse. 2) The length of a

15. ## Chemistry

Write the element symbol and charge for this monatomic ion: Consider a monatomic ion that has the electron configuration of [Kr]4d^10 5s^2 and a charge of 2+

16. ## Geometry

Point J is between H and K on line segment HK. use th given information to write an equation in terms of x. Solve the equation. Then find HJ and JK. HJ=(x/4) JK= 3x - 4 KH = 22

17. ## algebra 2

Find two negative numbers such that the sum of their squares is 170 and twice the square of the first minus 3 times the square of the second is 95

18. ## statistics math

The unemployment rate is 5.8% (Bureau of Labor Statistics, April 3, 2003). Suppose that 100 employable people are selected randomly. 1)What is the probability that exactly six people are unemployed (to 4 decimals)? 2)What is the probability that exactly

19. ## physics

You're in an airplane that flies horizontally with speed 860 km/h (240 m/s ) when an engine falls off. Neglecting air resistance, assume it takes 26 s for the engine to hit the ground. Hight of airplane is: H = 3.3 km horizontal distance that the aircraft

20. ## Algebra

1. Find all the real square roots of a. .0064 b. - .0081

21. ## Algebra

What is the equation, in standard form, of a parabola that models the values in the table x (-2,0,4) F(x) (2.5,1.5,-60.5)

22. ## Math

What point maximizes the objective function P = 4x + 3y for the constraints below. What is the maximum value? Constraints: x>=0 y>=0 y=y

23. ## Goverment

Which of the following was one compromise related to the Declaration of Independence that was agreed to by the delegates to the second continental congress? Language condemning the slave trade was removed Language criticizing the English people was

24. ## math

Hamid will be x years old 7 years from now. How old was he 7 years ago? (Your answer should include x.)

25. ## algebra

The length of a rectangle is 2 1/2 times the width, and the perimeter is 42 feet. What are the dimensions of this rectangle?

26. ## math

For an 18 month period, the last term is and the series sum is . For a 24 month period, the last term is and the series sum is . For a 30 month period, the last term is and the series sum is .

27. ## Physics

Figure shows a circular wire loop of radius r carrying current i placed in a perpendicular magnetic field B. Suppose that the radius of cross section of the wire is a. Find the decrease in radius of loop when magnetic field is switched off if Young’s

28. ## math

The mean of 14 numbers is 50. Removing one of the numbers causes the mean to decrease to 43. What number was removed?

29. ## physics

A cat is chasing a mouse. The mouse runs in a straight line at a speed of 2.2 m/s. If the cat leaps off the floor at a 29° angle and a speed of 4.0 m/s, at what distance behind the mouse should the cat leap in order to land on the poor mouse?

30. ## science

What is the coeffitient of friction for a playground slide and a pair of sports pants?

31. ## math

the lengths of two legs of a right triangle depend on time. One, whose length is x increase at the rate of 5 feet per second, while the other, of length y, decreases at the rate of 6 feet per second. At what rate is the hypotenuse changing when x=3 and

32. ## English

What is the effect of using the first person in a modest proposal by Jonathan Swift

33. ## Algebra

Identify the type of conic section that has the equation 9x^2+ 25y^2 =225 and identify its domain and range.

34. ## Algebra

The equation h = -16t^2 + 32t + 9 gives the height of a ball, h, in feet above the ground, at t seconds after the ball is thrown upward. How many seconds after the ball is thrown will it reach its maximum height? What is its maximum height?

35. ## physics

Michael, whose mass is 80 kg, runs at a speed of 3 m/s. What is his kinetic energy?

36. ## Chemistry

The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium

37. ## Chemistry

The formate ion, (CHO2-), is related to the acetate ion and forms ionic salts with many metal ions. Assume that 9.7416 g of M(CHO2)2 (where M represents the atomic symbol for a particular metal) are dissolved in water. When a solution of 0.200 M sodium

38. ## Algebra

literal equation: solve for x ax=bx-c

39. ## Physics

A skydiver deploys his parachute when he is 950m directly above his desired landing spot. He then falls through the air at a steady 5.0 m/s . There is a breeze blowing to the west at 1.1 m/s. At what angle with respect to vertical does he fall? By what

40. ## physics

A violin string vibrates at 440 Hz when unfingered. At what frequency will it vibrate if it is fingered one fourth of the way down from the end?

41. ## Calculus

Find the volume of the solid by subtracting two volumes, the solid enclosed by the parabolic cylinders y = 1 - x 2, y = x 2 - 1 and the planes x + y + z = 2, 6x + y - z + 16 = 0.

42. ## Physics

A boy tosses a football upward. If the football rises a vertical distance of 1.1 m and the boy catches it at the same point he released it, what is the velocity of the ball just before he catches it?

43. ## physics

Compute the order of magnitude of the mass of (a) a bathtub filled with water, and (b) a bathtub filled with pennies. In your solution list the quantities you estimate and the value you estimate for each.

44. ## math

In a certain neighbourhood the ratio of cats to dogs to squirrels to skunks is 5:4:7:1. If there are 119 of these animals in all, how many are dogs?

45. ## math

Kimberley's car can go 290 km on 21 L of gas. how far will her car gon on 31 L of gas?

46. ## Physics

a 57.0 kg person on a rollercoaster moving through the bottom of a curved track of radius 42.7 m feels a normal force of 995 N how fast is the car moving

47. ## Physics

A ball is thrown vertically with a velocity V0 from a building with height h, a second ball is dropped from the same building a second later, calculate the maximum inicial velocity V0 needed so that both balls get to the ground at the same time and so that

48. ## Physics

A weightlifter raises a barbell of mass 150 kg from the floor to over his head 2.5 meters in 3 seconds. What is his average power input?

49. ## Algebra

1. Find all the real square roots of a. .0064 b. - .0081

50. ## Algebra

Rewrite 32^3/5 as a radical expression and then simplify.

51. ## Introduction to small engines

The distance the piston must travel from TDC to BDC is referred to as the of the engine

52. ## Algebra

the foci of the ellipse given by the equation 100x2 + 25y2 = 2500?

53. ## Chemistry

One isotope of a metallic element has mass number 10 and has 7 neutrons in the nucleus. It forms an atomic ion having 2 electrons. Enter the symbol for this ion

54. ## Math

What is the difference between 20 hundreds and 3 x 10 to the 2nd power

55. ## Math

How much more is 245,612 than the combined numbers of 18,912 and 45,608

56. ## Math

I am a number between 1000000 and 2000000. My ones digit is the sum of my tens and hundreds digits and is also the sum of my millions and ten thousands digits.my hundred thousands, thousands, and ones digits are the same.the sum of my digits is 45.what

57. ## Math

Can someone help me complete this table? a - 5, 6, 7, 8, 9 b - 3.8, 4.6, 5.4, _, _ So, do you add 0.8 each time? I think the next two numbers are 6.2 and 7.0.

58. ## Chemistry

Now, my problem with this question is the break-down, I don't know where to start. Calculate the volume of H (g), measured at 21.9°C and 769 Torr required to react with 36.3 L CO(g), also measured at 21.9°C and 769 Torr. Assume the gases react as

59. ## algebra 2

3x+y+z=14 -x+2y-3z=-9 5x-y+5z=30 linear equations solve by elimination

60. ## science

Describe how you would find the mass of 250mL of water

61. ## chemistry HELP!!

Reaction Rate = -(1/2) [d(H2O2)/dt] = [d(O2)/ dt] Using 25 mL of a 0.2 M hydrogen peroxide solution, the following results are obtained from the equation above: 8.62 mL of gas is collected in 120 seconds. (Assume 760 Torr = 1 atm) Room temperature is 25

62. ## math

x: -2,-1, 0, 1, 2 ------------------- y: 9, 4,-1,-6,-11 find the function rule. please??

91. ## Algebra

Write a quadratic equation in the variable x having the given numbers as solutions. Type the equation in standard form ax^2+bx +c = 0 The solution is 6 only solution.

92. ## Physics

This is a basic question on motion. I must choose a procedure to test sideward motion and have no clue where to start. I am in 2nd grade so this test needs to be relatively simple. Thanks!

93. ## Calculus

Let f be the function given by f(t) = 2ðt + sin(2ðt) a) Find the value of t in the open interval (0,20 for which the line tangent at (t, f(t)) is parallel to the line through (0,0) and (2,4ð) b) Suppose the given function describes the position of a

what are 10 (things (living and non-living things)that a barracuda need to live a healthy life?

95. ## math

why do dragons sleep during the day

96. ## Science

How is friction involved in Volleyball? Hand touches volleyball maybe.... i know that but what type would that be?? Spinning friction orrolling friction??? The type of friction would relate to exactly how the hand comes in contact with the ball. Since

97. ## Physics

A block and tackle with a velocity ratio of 7 is used to raise a mass of 50kg through a vertical distance of 800mm at a steady rate. If the effort is equal to 110N. Determine (a) The distance moved by the effort. (b) The workdone by the effort in lifting

98. ## math

Violet has 8\frac{1}{3} 3 1 ​ cups of dough to make dumplings. If she uses \frac{3}{4} 4 3 ​ cup of dough for each dumpling, how many whole dumplings can Violet make?

99. ## Math

#1: a) Let a, b, c be integers and x is congruent to y (mod m). Prove that ax^2+bx+c is congruent to ay^2+by+c (mod m). b) Show that the result in part a may be false if a, b, c are not all integers, even if ax^2+bx+c and ay^2+by+c are both integers. #2: