# Questions Asked onNovember 23, 2013

1. ## Math

Let ABCD be a parallelogram. Let M be the midpoint of AB and N be the midpoint of AD. Diagonal BD intersects CM and CN at P and Q, respectively. Find PQ/BD.

2. ## Math

The bases of trapezoid ABCD are AB and CD. Let P be the intersection of diagonals AC and BD. If the areas of triangles ABP and CDP are 8 and 18, respectively, then find the area of trapezoid ABCD.

3. ## Solar Energy

With respect to a PV module's I-V and P-V curves, and the module's operating point, consider the following statements: a) When the operating point of the PV module is on the MPP (maximum power point), $$P_{mpp} \lt V_{oc} \times I_{sc}$$ b) For a given

4. ## College alerbra

Scott invested a total of $9500 at two separate banks. One bank pays simple interest of 11% per year while the other pays simple interest at a rate of 9% per year. If Scott earned$973.00 in interest during a single year, how much did he deposit in each

5. ## math

the area of a triangle is equal to 48 cm squared and two of its sides measure 12 cm and 9 cm, respectively. find the possible measures of the included angles of the given sides.

6. ## math

Electron Tube Electronics made 50,000 TVs last month. If 3.5% of them were high definition, how many high definition TVs were produced?

7. ## Physics

A 710kg car drives at a constant speed of 23m/s . It is subject to a drag force of 500 N. What power is required from the car's engine to drive the car (a) on level ground? (b) up a hill with a slope of 2.0∘ ?

8. ## Physics

Problem 2- A 4 kg object is attached to a vertical rod by two strings, as in the Figure. The object rotates in a horizontal circle at constant speed 6 m/s. Find the tension in (a) the upper string and (b) the horizontal string.

9. ## Math

A Norman window has the shape of a rectangle surmounted by a semicircle. (Thus, the diameter of the semicircle is equal to the width of the rectangle.) If the perimeter of the window is 30 ft, find the dimensions of the window so that the greatest possible

10. ## Statistics

Exercise 8.92 Tony's Pizza guarantees all pizza deliveries within 30 minutes of the placement of orders. An agency wants to estimate the proportion of all pizzas delivered within 30 minutes by Tony's. What is the most conservative estimate of the sample

11. ## chemistry

20.0 g of ammonium nitrate (NH4NO3) is dissolved in 125 g of water in a coffee-cup calorimeter, the temperature falls from 296.5 K to 286.4 K. Find the value of q for the calorimeter.

12. ## TRIPLE JUNCTION SOLAR CELL - I

The figure below presents the EQE of a triple junction solar cell with junctions A, B and C under short circuited (V = 0 V) condition. EQE table is: A: EQE = 0.7 wavelength= 300 to 650 nm B: EQE = 0.9 Wavelength= 650 to 850 nm C: EQE = 0.8 Wavelength= 850

13. ## myths

In the archetypal heroic quest, the hero A. goes on a quest to demonstrate his strengths and perfection. B. overcomes all challenges without damage to his core strengths. C. exhibits both strengths and flaws as he faces challenges. D. builds a following as

14. ## Chemistry

Balancing Complete Redox Reactions I need help on the half reduction part for both reduction and oxidation of Cl2(g) --> cl^1- (aq) + OCl^1- (aq). I got both of the half reactions started. Cl2 --> Cl^- (Reduction) .... Cl^1- (aq) + OCl^1- (aq) (Oxidation).

15. ## physical

Specific Heat. Copper has a specific heat of 0.092 cal/g/deg C. A 75 gram copper mass has been heated to a temperature of 100 degrees C. The copper is placed in thermal contact with 50 grams of water at 25 degrees C. What will be the final equilibrium

16. ## Algebra

Make a conjecture about the solution of a system of equations if the result of subtracting one equation from the other is 0 = 0 A. There are no solutions b. there are infinite number of solutions c. Cannot determine any solution d. the solutions are

A garden will be made up of a parallelogram, a rectangle and a triangle. The garden must have an area of 500m2. Draw two possible gardens. Determine the dimensions of each part of the garden, and justify your choice of these dimensions.

18. ## Math

The radius of a circle and it's circumference Direct or inverse

19. ## english

Excerpted from A Tale of Two Cities by Charles Dickens  Saint Antoine* had been, that morning, a vast dusky mass of scarecrows heaving to and fro, with frequent gleams of light above the billowy heads, where steel blades and bayonets shone in the sun. A

20. ## Challenge

Suppose you have been hired as a financial consultant to Defense Electronics, Inc. (DEI), a large, publicly traded firm that is the market share leader in radar detection systems (RDSs). The company is looking at setting up a manufacturing plant overseas

21. ## science

A geneticist is studying a pedigree that shows the family history of a recessive genetic disease. Which of the following pedigrees shows an impossible relationship? (

22. ## 8th grade science :(

How does the sun's gravity influence tides?

23. ## Civics

Ms.Sue would you mind checking my answer? Question~How does the constitution protect someone's freedom of speech while also limiting their freedom of speech? Answer~ we are allowed to state our opinion as long as it-does not taken someone's rights away,

24. ## reading what does this mean?

Those members will create a "page" in a characterization book entitled "Two Kinds." Each page will present a character, character terms specific to this character, a graphic image and text suppot that "proves" each character term that has been assigned.

25. ## Statistics

Tony's Pizza guarantees all pizza deliveries within 30 minutes of the placement of orders. An agency wants to estimate the proportion of all pizzas delivered within 30 minutes by Tony's. What is the most conservative estimate of the sample size that would

26. ## english

An important purpose of myths is A. to create interesting entertainment and exciting story plots. B. to illustrate the connections between modern times and the past. C. to build an understanding of the past and teach lessons for the future. D. to establish

27. ## english - myths

The traits of a hero are determined by A. cultural values. B. their experiences.

28. ## Physics

Problem 3- A 40 kg child swings in a swing supported by two ropes, each 3 m long. (a) If the tension in each rope at the lowest point is 350 N, a. find the child's speed at the lowest point. b. the force exerted by the seat on the child at the lowest

29. ## Math

WHAT WOULD 18/100 BE IN RATIO FORM, I THINKING 18:100 BUT NOT SURE?

30. ## statistics

Failing to reject the null hypothesis when it is false is a Type II Error. T or F, and why or why not?

48. ## Algerbra

if possible, solve the nonlinear system of equations. x^2+y^2=58 y-x=4

49. ## Science

Luther Burbank was a plant breeder who developed a strain of potato plant that produced more tubers of larger size than other potato plants that were grown on farms at the time. This strain of potato was also resistant to the potato blight that had wiped

1/5 of 10% of 200g how would i solve this plz explain!! (one over five of ten percent of two-hundred grams)

51. ## Math

Combine like terms: 11r + 3 - 12 + 2r

52. ## Matt

Multiply and then simplify the following expression: (2t + 1)(t - 3)

53. ## math

Solve the following proportion:t/8 = 3/4

54. ## math

Simplify the following algebraic expression: b[b(b - 2) - 4] + 1

(2a4)2 = ?

56. ## algebra

How do i write the qoutient of twenty four and the number p as a variable expression using p as the variable

57. ## Math

0.08x^3 + 0.6x+2.8 absolute-value function Rational function Another polynomial function Quadratic function

58. ## math

Miriam is four years older than Ricardo. 10 years ago she was 3 times as old as Ricardo was then. A) How old are they now B) determine whether your answer is correct by checking that it satisfies the conditions of the problems

59. ## math

I do not understand how the odds of drawing a queen from a deck of cards is 3to1

60. ## cal

The function gives the distances (in feet) traveled in time t (in seconds) by a particle. Find the velocity and acceleration at the given time. s= √(t^2-5), t=3

61. ## math problem grade 8!!

A soccer goalie has saved 14 shots and let in 1 goal. Explain Please!!!

62. ## English

1. She cut it open. (Is 'open' an objective complement? What is the part of speech of 'open'? Is 'open' an adjective or a 'verb'?) 2. Chocolate is made from cocoa beans. 3. Chocolate is made from cacao beans. (Which one is correct?) 4. He is picking up a

63. ## CHEMISTRY BALANCING CHEMICAL EQUATION

H2SO4 + NaOC = Na2SO4 + H2O

64. ## waste water

The cross-sectional surface area of the screen channel during maximum flow = 0.75 m2. The maximum free surface area in the clean screen = 0.5 m2. Use hL=1C⋅(V2−v2)(2⋅g) for calculating the head loss, the friction coefficient (C) for a clean screen is

65. ## rhetoric (essay writing)

I just need a few ideas of what are the causes of racism in EGYPT and things that I can talk about relating to social class for my research paper please. Im focusing on "black" racism. Thanks :)

66. ## physics

how much work (in ft lb) is done by a large bucket that can lift 4.5 ton of dirt 14 ft into the air and dump it into a 5.0 yd cubed dump truck?

67. ## Algebra

After one round in a card game, your score was 42 points. After the second round, your score was -2 points. How many points did you lose in the second game?

68. ## algebra 1

Marissa is a photographer. She sells framed photographs for $100 each and greeting cards for$5 each. The materials for each framed photograph cost $30, and the materials for each greeting card cost$2. Marissa can sell up to 8 framed photographs and 40

69. ## algebra 1

and I need help on this one problem This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS). would a graph model this problem situation?

70. ## algebra 1

This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS).

74. ## science

theory of plate tectonics/what are tectonics plates?

75. ## statistics

IQ scores were obtained from randomly selected couples.For 20 such pairs of people, the linear correlation coefficient is 0.881 and the equation of the regression line is y= -6.93+ 10.8x, where x represents the IQ score of the husband. Also, the 20x values

102. ## Math

102=8a+5a-3a I add 8a and 5a first to get 13 and then add 3?

103. ## math

Find the area of the shaded region. View the graph and image at: postimg.o rg/image/dg4kt89v1/ Please help me explain this one. I know the ans to this one but can not work out.

104. ## Geometry

What is y if 6y+1=21y+13

105. ## Math

12g-6=7g How do I solve this one because I have to find g by itself

106. ## Haikus

Are these ok? The wild animals Are very protective of Their natural home The sunlight is nice For us to see in daylight And helps us keep warm Do any of these contain symbolism? If so, which ones and where?

107. ## Science

How did Lamarck and Darwin differ in their thinking about species? A. Darwin thought that organisms could induce their own changes, while Lamarck thought that change could only be induced by an organism's environment. B. Darwin thought that change could

108. ## math

The graph below shows the rate of natural gas usage (in therms per day) in one household for a 30 - day period. Estimate the total number of therms used during this period. Use left endpoints and rectangles with widths of 3 days. View graph at: postimg.o

109. ## Magnets

A positive helium ion He+ is released from rest at the surface of a +1000 V flat electrode. It travels in the +x-direction (in vacuum) across a 1 mm gap, passes through a small hole in a +0 V electrode that is parallel to the first one, and enters a region

110. ## Math-Algebra 1

Part 1: When writing linear equations, how do you determine which form of a line to use? Part 2: Choose 1 set of points from the choices below. Then, solve the problem and post your solution, showing your steps. Write an equation in point-slope form for