# MARIA

Most popular questions and responses by MARIA
1. ## language arts

which sentence best describes the employer in the original story "the ninny" and the employer in the adaptation the governess

2. ## check pls

Grayson is designing a rectangular athletic field. On his scale drawing. the vertices of the rectangle are (4,5), (9,10), and (9,5). What are the coordinates of the fourth vertex? A. (4,9) B. (4,10) C. (5,10) D. (5,9) I think it's A. (4,9) Am i right?

3. ## Chem (HELP ASAP)

Phenol C6H5OH partially dissociates in water as shown C6H5OH + H2O --> H3O+ + C6H5O- If Ka is 1.6*10^-10 and the concentration of H3O and C6H5O are both 1.0*10^-5 M at equilibrium, what would be the concentration of phenol?

4. ## java/programming

ask the user to enter his or her birthday in the MM/DD/YYYY format and output the number of days between the birthday and today. This gives the person's age in days.

5. ## science

A person drive an automobile with a mass of 450 kilograms at a velocity of 26 meters per second. The driver accelerates to a velocity of 30 meters per second. The difference in the automobile's kinetic energy is how many joules?

6. ## Social Studies

In which h economic situation would interest rate decrease? Most people are saving rather than buying houses••• Average families are choosing to invest in new businesses High consumption is driving a surge in the services sector Increased job

7. ## Geometry

Given: ΔABC, AB = BC Perimeter of ΔABC = 50 Perimeter of ΔABD = 40 Find: BD BD is the altitude and I got 15, 15+20+5=40 20+20+10=50

8. ## calculus

A rectangular beam is cut from a cylindrical log of radius 25 cm. The strength of a beam of width w and height h is proportional to wh2. (See Figure 4.70.) Find the width and height of the beam of maximum strength.

9. ## math

A​ student's course grade is based on one midterm that counts as 15​% of his final​ grade, one class project that counts as 15​% of his final​ grade, a set of homework assignments that counts as 40​% of his final​ grade, and a final exam that

10. ## chemistry

Solubility (g/100gH2O) Substance 20∘C 50∘C KCl 34.0 42.6 NaNO3 88.0 114.0 C12H22O11 (sugar) 203.9 260.4 Using the above table, determine whether each of the following solutions will be saturated or unsaturated at 50 ∘C. 1.) Adding 19.7 g KCl to 35.0

11. ## Social studies

To which internatinal associations does the United States belong to?

12. ## Calculus

A sphere with radius 1m has temperature 15 degrees C. It lies inside a con- centric sphere with radius 2m and temperature 25 degrees C: The temperature T(r) at a distance r from the common centre of the spheres satisfi es the di fferential equation:

13. ## Math

the probability of winning a game is 25%. how many times should you expect to win if you play 20 times.

14. ## Math

from a barrel of colored marbles, you randomly select 5 blue, 2 yellow, 3 red, 4 green, and 2 purple marbles. Find the experimental probability of randomly selecting a marble that is not yellow.

15. ## Cultural Anthropology

The difference between transhumance and nomadic pastoralism is: (Points : 1) in transhumance people grow food and in nomadic pastoralism any domesticated plant food is acquired through trade. different types of animals are herded. in transhumance women do

16. ## statistics

A service station has a pump that distributes diesel fuel to automobiles. The station owner estimates that only about 3.2 cars use the diesel pump every 2 hours. Assume the arrivals of diesel pump users are Poisson distributed. a. What is the probability

17. ## PHI 105 critical thinking and problem solving

explaining the relationship between informative, explanatory and persuasive statements and critical thinking

18. ## PHYSICS

A 5.00-kg box slides 7.00 m across the floor before coming to rest. What is the coefficient of kinetic friction between the floor and the box if the box had an initial speed of 3.00 m/s?

19. ## Math

Suppose Elina used 15 tiles to make the rectangular design. How many different rectangles could she make with the 15 tiles? Write a list or draw a picture to show the number and dimensions of the rectangles she can make.

20. ## Art

What did the Vogel's artworks communicate about their historical interests? They collected works that were culturally popular. They collected works that depicted revolutions. They collected works that depicted the history of cities. ( my choice ) They

21. ## Science

Which of the following determines the type of biome classification that will be made for a particular reason? a. Climate* b. Size c. Mineral deposits d. Number of human settlements

22. ## math

In an isosceles triangle, the perimeter is 75 cm and one of the sides is 25 cm. Find all its sides. Can you find all angles of the triangle? Explain your answer.

23. ## physics

A shotputter accelerates a 7.3kg shot from rest to 14m/s. If this motion takes 2.0s what average power was developed?

24. ## chemistry

What volume of 0.10 M NaOH can be prepared from 250. mL of 0.30 M NaOH? A) 0.075 L B) 0.25 L C) 0.75 L D) 0.083 L E) 750 L

25. ## Algebra 2 help...

A half life of a certain radioactive is 36 days. An initial amount of the material has a mass of 487 kg. Write an exponential function that models the decay of this material. Find how much radioactive material remains after 5 days. Round your answer to the

26. ## Art

Please help me I do connexus and this is the last quiz for the semester and I get it wrong then my grade will be a b and my dad will be mad. Individuals can use different criteria to analyze artwork. What would be an example of inappropriate criteria for

27. ## Pre Calculus

Two forces with magnitudes of 150 and 75 pounds act on an object at angles of 30° and 150°, respectively. Find the direction and magnitude of the resultant force. Round to two decimal places in all intermediate steps and in your final answer. Having lots

28. ## Algebra 2

Which matrix represents the system of equations below? -10x-9y+13z=12 8x-7y-5z=15 5x+4y-6z=-12 a. -10,-9,13 8,-7,-5 5,4,-6 b.-10,-9,13 8,7,5 4,4,-6 c.-10,8,5 -9,-7,4 13,5,-6 d. 10,8,5 9,-7,4 13,5,-6

29. ## History Social studies

1. Which activity is part of both private and civic life? (1 point) learning about politics •• voting for a candidate going to sports games working at a bookshop 2. Why are elections necessary for good governance? (1 point) Elected officials can be

30. ## Calculus 1

Find the formula for a function of the form y=bxe^(-ax) with a local maximum at (4,12)...

31. ## geometry

Shalonda notices that when she stands next to the flagpole, she casts a shadow that is 8 feet long and that the flagpole casts a shadow that is 28 feet long. Little Shalonda is 4 feet tall. How tall, to the nearest foot, is the flagpole? step by step on

Identify which of the following sentences uses modifiers correctly; a) kurt and his hockey teammates nearly cooked two hundred pancakes for the breakfast fundraising event. d) Bridget decided to leave her career as an attorney and pursue acting during the

33. ## Math

A survey showed that 36% of car owners prefer two door cars, 52% prefer four door cars, and 12% have no preference. You ask 300 people. How many do you think will prefer the two door cars.

A 13-foot ladder is leaning against a vertical wall. If the bottom of the ladder is being pulled away at a rate of 2 feet per second, how fast is the area of the triangle formed by the wall, the ground, and the ladder changing when the bottom is 12 feet

35. ## College Chemistry

What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370 V? Given: A voltaic cell consists of a Pb/Pb2+ half-cell and a Cu/Cu2+ half-cell at 25degrees C . The initial concentrations of Pb2+ and Cu2+ are 5.30×10−2 M and 1.60 M,

36. ## Social Studies

Maria ivanov has owned a successful clothing boutique chain for 20 years. Sha has gone into debt several times to expand her business.each time she paid off the debt in full sooner than expected. How will Maria's record affect the loans she is offered? She

37. ## statistics

A new extended-life light bulb has an average service life of 750 hours, with a standard deviation of 50 hours. If the service life of these light bulbs approximates a normal distribution, about what percent of the distribution will be between 600 hours

38. ## physics

A 48-kg girl stands on a 8-kg wagon holding two 19.5-kg weights. She throws the weights horizontally off the back of the wagon at a speed of 9.0 m/s relative to herself. - Assuming that the wagon was at rest initially, what is the speed of the girl after

39. ## physics

Two identical containers are open at the top and are connected at the bottom via a tube of negligible volume and a valve which is closed. Both containers are filled initially to the same height of 1.00 m, one with water, the other with mercury, as the

40. ## chemistry

Calculate the grams or milliliters of solute needed to prepare the following solutions. 1.)75. g of a 7.0 % (m/m) KCl solution 2.) 1250 mL of a 8.0 % (m/v) NH4Cl solution 3.) 270. mL of a 15.0 % (v/v) acetic acid solution I really just need to know how to

41. ## trig.

a person standing 100ft. from the base of the tree looks up to the top of the tree with an angle of elevation of 52. assuming that the persons eyes are 5ft above ground the ground how tall is the tree?

42. ## chemistry

what is the osmolarity of 0.35M KBr? how to set it up.

43. ## Art

Please check my work i am in connecus and i can’t add in the pictures but if possible can someone check this. This picture is called “ the wounded foot” and it’s by Joaquin sorolla y Bastida and I really hope someone can check this answer thanks In

44. ## Geometry

The length of a table is 6 feet on a scale drawing the, length is 2 inches write three possible scales for drawing

45. ## Chemistry

Write a balanced equation for an alpha particle from Gd-148

46. ## geometry

Looking at formulas, which 2 shapes describe this relationship: the area of the 2 dimensional shape is one-fourth the surface area of the 3-demensional figure? Looking at formulas, which two figures describes this relationship: the volume of the first

47. ## Science Ms. Sue Please

1. The human endocrine system is made up of which of the following structures? (1 point) vessels receptors glands * chambers 2. Which of the following best describes the function of the endocrine system? (1 point) It secretes chemical messengers that

48. ## math

A rope goes from one building to another. The distance between the buildings is 10m, and the rope is tied at each building at a point 8m and 4m from the ground. Find the length of the rope.

49. ## History

Of the following choices which ones are considered democratic values? Select all that apply A. Serving in the military*** B. Honesty C. Patriotism D. Voting in an election ••

50. ## Perimeter

Lamar made a garden in the shape of a rectangle with an area of 36 square feet. The shorter side of the garden measures 4 feet. Explain how you can find the perimeter of the garden.

51. ## Science

1. The human endocrine system is made up of which of the following structures? (1 point) vessels receptors glands * chambers 2. Which of the following best describes the function of the endocrine system? (1 point) It secretes chemical messengers that

52. ## Math

Netta faxed n pages from the library. The library charges \$1.50 per page. Later the same day, Netta faxed n more pages from a local copy shop. The copy shop charges \$1.25 per page plus a \$2 convenience fee. Write and simplify an expression for the amount

53. ## Algebra 1/2

The spinner is spun twice. What is the probability it will stop on either 3 or 5 the first time and will stop on 2 the second time?

54. ## math

List the sides of triangle ΔMNP in ascending order (shortest to longest) if: m∠M = 64°, m∠N = 48°, for this one i am not sure if your supposed to find the third angle and or the third side can you guys explain and show me the answer i got 132

55. ## Math

1. Write the balanced chemical equation for the reaction NaOH + HCI --> NaCI + H20 2. Extract the relevant information from the qustion: NaOH v= 30mL, M=0.10 HCI v= 25.0 mL, M=? 3. Convert to Liters NaOH v= 0.03 L, M= 0.10M HCI v=0.025L, M=? 4. Calculate

56. ## precalculos

The cost C of producing x thousand calculators is given by the following equation. C=-15.2x^2+15,990x+580,000(x≤​175) Find the average cost per calculator for each of the following production levels. 40,000​; 60,000​ and 175,000

57. ## Genetics

Why are we using more dilute cultures for the killing curve while we are using the arg selection culture at full strength? 1. The reason that we are using a more dilute culture for the killing curve is because we want to know how UV light exposure at

58. ## chemistry

On average, earth's crust contains about 8.1% aluminum by mass. If a standard 12-ounce soft drink can contains approximately 15.0g of aluminum, how many cans could be made from one ton of the Earth's crust?

59. ## Math

Which is an example of the Symmetric Property? if 3x + 2 = a + 6, then a + 6 = 3x + 2 if a = b and b = 5, then a = 5 if y = 6, then y + 12 becomes 6 + 12 x + 2 = x + 2 *** 2. To properly use the Addition Property of Equality what number would have to be

60. ## chemistry

calculate the molality, molarity, and mole fraction of NH3 in an 12.80 mass % aqueous solution (d=0.9651 g/ml)

61. ## Mathematics

Determining the number of seating arrangements with 10 people in 7 chairs required use of ? Combination Permutation** Probability Substitution Determining the number of 3 person committees formed from a club with 12 members requires use of? Combination

62. ## Chemistry

A patient received 5.0 g of NaCl in 8 hours. How many milliliters of a 0.40 % (m/v) NaCl (saline) solution were delivered?

a 600 n box is pushed up a ramp that is 2m high and 5 m long, the person is pushing the box at a force of 300 n,what is the efficiency of a ramp ?

64. ## algebra

a 38 inch piece of steels is cut into three pieces so that the second piece is twice as long as the first piece, and the third piece is three inches more than four times the length of the first piece. find the lengths of pieces.

65. ## math

find the image of S(-1,-3) after a reflection scross the line y=-2

66. ## Geography

which question would best help you analyze the population density of north korea? You have to choose 3 correct answers. How many square miles does East Asia covers?

67. ## physical sicence

If a force gives a 2-kg object an acceleration of 1.6 m/s2, what acceleration does this same force give to an 8-kg object?

68. ## Social studies

Type of American Indian dwelling in the Eastern Woodlands

69. ## Chemistry

If 20dm3 methane was burned in pure oxygen: CH4(g) + 2O2(g) arrow CO2(g) + 2H2O(l) how do I work out the volume of carbon dioxide made? And what volume of oxygen would be required? Thank you.

70. ## Geometry

The distance from the center of a square to its side is 4 yd. Find the perimeter of the square. if you post the answer it would be a big help

71. ## Analytical Physics II

A charged cloud system produces an electric field in the air near Earth's surface. A particle of charge -2.1 x 10-9 C is acted on by a downward electrostatic force of 4.3 x 10-6 N when placed in this field. (a) What is the magnitude of the electric field?

72. ## Physics

If the speed of light through material Z is 2.5×10^8 m/s, what is this material’s index of refraction? The speed of light in a vacuum is 3 × 10^8 m/s.

73. ## social studies

how did the siege at the Alamo influence the response of the Texas settlers? it force them to recruit native Americans it forced them to surrender it strengthened their resolve to fight*** it prompted them to have public forums

74. ## physics

You're in an airplane that flies horizontally with speed 830km/h (230m/s ) when an engine falls off. Neglecting air resistance, assume it takes 35s for the engine to hit the ground. Find the height of airplane. Find the horizontal distance that the

75. ## Chemistry

A solution is made by dissolving 10.20 grams of glucose (C6H12O6) in 355 grams of water. What is the freezing-point depression of the solvent if the freezing point constant is -1.86 °C/m?

76. ## Science

a reasonable estimate for the size of a cell's nucleus is a. 0.003 b. 3 mm c. 0.003m d. 3m

77. ## College Physics

A weightlifter has a basal metabolic rate of 64.6 W. As he is working out, his metabolic rate increases by about 650 W. (a) How many hours does it take him to work off a 450 Calorie bagel if he stays in bed all day? (b) How long does it take him if he's

78. ## calculus

The region bounded by the given curves is rotated about the specified axis. Find the volume V of the resulting solid by any method. y = −x2 + 7x − 12, y = 0; about the x-axis

79. ## Math

George bought some CDs at his local store. He paid \$15.95 for each CD. Nora bout the same number of CDs from a store online. She paid \$13.95 for each CD, but had to pay \$8 for shipping. In the end, both George and Nora spent the exact same amount of money

80. ## English

What literary device is most strongly represented in the following line from “Beowulf?” “Follower and the strongest of the Geats” A. Alliteration B. Hyperbole C. Kenning D. Caesura

The reaction of CO(g) + NO(g) is second-order in NO2 and zero-order in CO at temperatures less than 500K. (a) Write the rate law for the reaction. (b) How will the reaction rate change if the NO2 concentration is halved? (c) How will the reaction rate

82. ## Chemistry

So this is a three part question. I solved the first part correctly but I need help with the second and third. Q: The dissociation equilibrium constants for the protonated form of of alanine (a diprotic amino acid, H2X+)are Ka1 = 4.6 x 10^-3 and Ka2 = 2.0

The sum of twenty one and five times a number f is 61 total

84. ## Math

if the bowl contains 5 red marbles 7 blue marbles and 8 white marbles what is the probability you will draw a red or blue marble? 5/20 15/20** 7/20 3/5

85. ## Pre-Calculus

Find all solutions to the equation in the interval [0, 2pi) cos4x-cos2x=0 So,this is what i've done so far: cos4x-cos2x=0 cos2(2x)-cos2x (2cos^2(2x)-1)-(2cos^2(x)-1) No idea what to do next.

86. ## Mathematics

The multiply choice part of an assignment has 4 possible choices from each of the 5 questions how many possible ways can you answer the assignment? 9 1024 40 20**

87. ## Math

How many committees of 2 people are possible from a group of 11? 165 22** 13 55

88. ## chemistry

Ammonia gas can be prepared by the reaction CaO(s) + 2NH4Cl(s) -> 2NH3(g) + H2O(g) + CaCl2(s) If 112 g CaO reacts with 224 g NH4Cl, how many moles of reactants and products are there when the reaction is complete?

89. ## chemistry

Calculate the energy (in kJ) required to heat 25 g of liquid water from 25oC to 100.oC and change it to steam at 100oC. The specific heat capacity of liquid water is 4.18 J/goC, and the molar heat of vaporization of water is 40.6 kJ/mol.

90. ## chemistry

Titanium is used in airplane bodies because it is strong and light. It has a density of 4.55 g/cm^3. If a cylinder of titanium is 7.75 cm long and has a mass of 153.2 g, calculate the diameter of the cylinder. (V=pi*r^2*h, where V is the volume of the

91. ## physics

if you wished to warm 100 kg of water by 15 degrees celsius for your bath, how much heat would be required? (give your answer in calories and joules)

if xy is rational must either x or y be rational

93. ## Finite Math

Suppose a family has 5 children. Suppose the probability of having a girl is 1/2. find the probability that the family has exactly 3 girls and 2 boys?

94. ## Mathematics

How many different squads of 5 players can be picked from 10 basketball players 252 30,240 50**** 120

95. ## Math

Mia buys 3 gallons of gas that costs d dollars per gallon. Bob buys g gallons of gas that costs \$3 per gallon. a) Write an expression for the amount Mia pays for the gas. b) Write an expression for the amount Bob pays for the gas. c) What do the numeral

96. ## math

Each year a growing tree adds a new ring to its section some years the ring is thicker than others why do you suppose this happens? Suppose the average thickness of growth rings in the Flintstones national forest is 0.5cm about how old is old Fred a famous

97. ## social studies

What is social studies?social studies is when you learn about your history and they tell you what happen back then when a lot of us wasn't born and then they tell you to do your warm up.

98. ## Chemistry

What will the pH be if 15 mL of 0.1 M HCl are added to the buffer obtained by mixing 70 mL of 0.5 M CH3NH2 and 30 mL of 1.0 M CH3NH3+Cl-? (Kb for CH3NH2 is: 5.2 x 10-4 ) I'm having a hard time figuring out what to do first. is the ICE table come in handy