# Questions Asked onJanuary 22, 2020

1. ## Math

Esme plans to flip a fair coin 3 times and record the results of each flip. What is the probability that the coin lands with the heads side up on all 3 flips? Enter your answer as a reduced fraction, using the / symbol, like this: 42/53 I believe the

2. ## Physics

A sprinter, running a 100-meter race, can accelerate with a constant acceleration for 3.50 s before reaching his top speed. He can then can maintain that speed for the rest of the race. He runs the 100 meters in 10.0 s.

3. ## Calculus

A car travels along a straight road for 30 seconds starting at time t = 0. Its acceleration in ft/sec2 is given by the linear graph below for the time interval [0, 30]. At t = 0, the velocity of the car is 0 and its position is 10. What is the position of

4. ## chemistry

How many mol of PCl5 are in 0.17 g of PCl5? 2.56 × 10–3 mol of PCl5 3.81 × 100 mol of PCl5 3.54 × 101 mol of PCl5 8.16 × 10–4 mol of PCl5 the second one?

5. ## calculus

Let f be a differentiable function such that f(4)=7 and f′(4)=15. The graph of f is concave up on the interval (3,5). Which of the following is true about the approximation for f(3.5) found using the line tangent to the graph of f at x=4 ?

6. ## chemistry

Pure water and sodium chloride crystals are both poor conductors of electricity by themselves. However, if sodium chloride crystals are dissolved in pure water, the solution becomes a good conductor of electricity. How does this phenomenon demonstrate the

7. ## chemistry

Carbon dioxide (CO2) reacts with water (H2O) to form carbonic acid (H2CO3). Which equation demonstrates the law of conservation of matter for this reaction? A. 2 CO + H2O —> H2CO3 B. CO2 + H2O —> H2CO3 C. CO2 + 2 H2O —> 2 H2CO3 D. 2 CO2 + 2 H2O —>

8. ## calculus

A right triangle has base x feet and height h feet, where x is constant and h changes with respect to time t, measured in seconds. The angle θ, measured in radians, is defined by tanθ=h/x. Which of the following best describes the relationship between

9. ## chemistry

An unknown substance has been shown to have ionic bonds. Which of the following is most likely a property of this substance? A. low pH B. low boiling point C. high malleability D. high solubility in water d?

10. ## Math

Points A(−6,1) and B(0,4) are located in a coordinate plane. What is the distance from A to B? Enter your answer as a number, without units. im not quite sure can someone help

11. ## chemistry

Which compound has trigonal planar geometry? A. CHCl3 B. NH3 C. BCl3 D. HCN D?

12. ## chemistry

Which of the following best explains why the bonds in ammonia (NH3) are polar covalent? A. Nitrogen has a greater number of isotopes than hydrogen. B. Nitrogen has a greater electronegativity value than hydrogen. C. Nitrogen has a mass number that is 14

13. ## Math

1. Which list shows numbers ordered from least to greatest? A. -1.5, - 3.0, -7.1 B. - 2.5, - 1.0, - 1.2 C. - 3/3/4, -2/1/4, 1/1/8 *** (MY CHOICE) D. - 3/4,- 1/3/4, 1 2.Which number can be inserted in the parentheses so the numbers are ordered from least to

14. ## chemistry

Sulfur and oxygen form two polyatomic ions: SO32− and SO42−. What is the name of SO32−? sulfate sulfite sulfur dioxide monosulfur dioxide #4?

15. ## chemistry

An unknown substance has been shown to have metallic bonds. Which of the following is most likely a property of this substance? A. low melting point B. high conductivity C. low pH D. high solubility in water is it B?

16. ## Careers

With this subjects which career I can choose? Geography, maths lit, history, life science

17. ## math

A car travels 416 miles in 8 hours. At that rate, how far will the car travel in 22 hours 104 miles 151.3 miles 1,144 miles*** 3,328 miles

asked by 21 pilots (not really)
18. ## math

If the length of the shorter leg of a right triangle is 5 cm and the length of the hypotenuse is 13 cm, find the length of the longer leg.

19. ## math

A(n) __________ circle is used over a number when the solution can be equal to that number.

20. ## Earth Science -

In a model ensemble system, what do meteorologists change each time they run a simulation of the same model?(1 point) the initial conditions the mathematical equations used the predicted forecast the range of possible outcomes

21. ## Physics

The arm of a crane at a construction site is 16.0 m long, and it makes an angle of 13.9 ◦ with the horizontal. Assume that the maximum load the crane can handle is limited by the amount of torque the load produces around the base of the arm. What maximum

22. ## social studies

question 1 Which of the following describes how the structure of feudalism in Europe worked? A.There was a council of vassals; peasants voted for council members to represent them. B.The king chose people to serve on a senate; the serfs voted for people to

23. ## Earth Science

1. Which provides the most direct source of energy for a hurricane?(1 point) A warm ocean water B heating of the air by the sun C friction with the ground D rising, swirling winds 2. How does upwelling affect the weather of a coastal region?(1 point) A The

24. ## chemistry

If a polyatomic ion is made of halogen and oxygen atoms, what form would one take if it had the fewest atoms? This form would get only an -ate suffix. This form would get a hypo- prefix and an -ite suffix. This form would get a per- prefix and an -ate

25. ## Math

If P(A) = 3/5, P(B) = 1/4, and P(A∩B) = 3/10, are A and B independent? Select the option that provides both the correct answer and the correct reason. A: Yes, because 3/5 (1/4) = 3/10. B: No, because 3/5 + 1/4 ≠ 3/10. C: No, because 3/5 ÷ 1/4 ≠

26. ## Math

At the end of the summer, Walgreens advertised blow-up pools for 66% off the regular price. Jeff Jones saw a pool with a regular price of \$49.99. The dollar markdown is: A) \$39.29 B) \$32.99 C) \$33.99 D) \$33.39 E) None of these

27. ## history

Why were states so important to the Articles of Confederation? a. They wanted a new monarchy. b. States were under the federal/national government in terms of leadership. c. States had no power and they wanted to be part of one strong group. d. There was a

28. ## algebra

The data on the graph show the foot lengths and forearm lengths for a group of people. The line of best fit for the data is shown. Use the equation of the line of best fit to predict the length of a person’s forearm if the length of their foot is 8

29. ## chemistry

Which of the following has the fewest valence electrons? A. nitrogen (N) B. boron (B) C. lithium (Li) D. fluorine (F) is it C?

30. ## Math

Write the polynomial in standard form. Then name the polynomial based on its degree and number of terms. 6x^2+ 6x^4– 2x^2

31. ## algebra

Jan mixes 1 1/3 cups of white flour,, 1 3/4 cups of whole wheat flour, and 2/3 cup of rye flour. About what fraction of the mixture is whole wheat flour? Solve and explain how you got your answer.

32. ## Math

90 is the product of Delia's age and 5. Use the variable to represent Delia's age.

33. ## Math

A surveyor sights two signs and the angle between the two lines of sight measure 55°

34. ## Careers

What career path can i follow with these subjects Math literacy, physical science,life science

35. ## chemistry

What is the molar mass of acetic acid (HC2H3O2)? (NOTE: H = 1.008 amu, C = 12.011 amu, O = 15.999 amu) 120.1 g/mol 30.0 g/mol 58.0 g/mol 60.0 g/mol is it 58.0 g/mol?

36. ## math

Explain how the difference of a fraction or a rational number and its additive inverse is equal to zero.

37. ## math

A rectangular piece of sheet metal is 4 ft longer than it is wide. The area of the piece of sheet metal is 45 ft2. Find its length and width.

38. ## Math

A card is chosen at random from a standard deck of 52 playing cards. What is the probability that the chosen card is a king or a queen? A: 4/52 (1/2) = 1 26 B: 4/54 + 4/50 = 104/675 C: 4/52 (4/52) = 162/704 = 1/169 D: 4/52 + 4/52 = 8/52 = 2/13 I belive its

39. ## science

Which process is an important part of chemical weathering through oxidation? a.) oxygen giving up electrons to other elements. b.) oxygen capturing electrons from other elements. c.) oxygen capturing protons from other elements. d.) oxygen giving up

40. ## Writing

For the following sentences underline the complete predicate and circle the simple predicate

41. ## Math

Alex rides 45 miles in 3 hours. Write an equation that shows the relationship between the distance, d and the time, t that he rides if Alex rides at a constant rate of speed? D(Distance) = 15T(Time) Is this right

42. ## Physics

A grasshopper leaps into the air from the edge of a cliff at a 47 degree angle. He reaches a maximum height 6.49 cm above the top of the cliff and travels a total horizontal distance of 1.02 m. How tall is the cliff and what is the initial speed of the

43. ## Physics

A hydraulic lift has 1000 N applied to an input piston that has an area of 30 cm2. What is the pressure exerted on the input piston?

44. ## History

How did the Protestant Reformation impact Christianity? It made it more popular, correct? People created different branches of Christianity?

45. ## Math

April rewrote a quadratic function in vertex form. h(x)=5^2-30x+30 step 1 h(x)=5(x^2-6x+ )+30 step 2 h(x)=5(x^2-6x+9)+30-45 step 3 h(x)= 5(x-3)^2+15 In which step did they make a mistake? and how? Please help

46. ## math

the total value of the dimes and quarters in a coin bank is \$3.70. if the quarters were dimes and the dimes were quarters, the total value would be \$4. Find the number of dimes and the number of quarters in the bank.

47. ## Science

What would likely happen if a frog pond was polluted with trash?

48. ## Civic

10 Factors that can hinder a citizen rights

49. ## Chemistry

What is the enthalpy change when 100.0 g octane (C8H18, MW = 114.23 g/mol) is combusted at 25C?

50. ## math

Write and solve an equation that represents the following situation 35 people paid a total of 245 for admission to a local soccer game. What is the price of admission. Please help im stuck.

51. ## Math

Four pipes can fill a tank in 70 minutes.how long will it takes to fill the tank if 7 pipes are used.

52. ## Physics

Calculate+the+linear+expansivity+of+a+brass+of+length+120m+that+assume+a+new+length+of+120.05m+when+heated+through+a+temperature+of+100°c

53. ## algebra

Janet is training for a marathon. She decides to track her time per mile, in minutes, for 8 weeks. Which equation best fits the data? A graph is labeled as Marathon Training. The horizontal axis is labeled as Weeks and the vertical axis is labeled as Time

54. ## Math

Do the ratios 14/7 and 2/1 form a proportion?

55. ## Social Studies

Which of the following describes how the Catholic Church was a part of European culture in the Middle Ages? A. Most peasants learned how to read and write by attending a Catholic school. B. The Church pushed for people to use reason and to question those

56. ## Social Studies

Why did the pope called for the Crusades? A. to take back the holy lands from Muslim control B. to fight against the Byzantine Empire and restore Catholic practices in that region C. to gain knowledge of the Muslim faith and bring it back to the people of

57. ## calculus

Find the most general antiderivative of the function. (Check your answer by differentiation. Use C for the constant of the antiderivative.) f(x) = 1/2x+ 2/3x^2 - 5/6x^3

58. ## chemistry

How does Avogadro’s number relate to the atomic mass and moles of an element? 1. Avogadro’s number can be used to convert the atomic mass of an element to the mass of one mole of that element. 2. The atomic mass of an element can be used to convert

59. ## Science/Health

1) Identify the systems of your body, and explain how these systems work together. 2) Describe the flow of blood to the human body, including through each of the four. Can you guys help me with this?

60. ## social studies

1Which is one way that Homo sapiens differed from Neanderthals? A. They created stone tools. B. They could learn and adapt. C. They hunted for food.**** D. They buried their dead. 2.In what way did Hippocrates influence the field of medicine that can be

61. ## English

Which sentence contains a predicate noun? A. The walk through the tunnel was eerie. B. I bought my mom a cookbook for her birthday. C. My dog is a master of the household. D. The ground is very uneven. I think it's A or B. Could you provide me with help

62. ## algebra

If 14 out of 20 people like chocolate milk, what percent of the people do not like chocolate milk? (1 point) 5% 30% 40%*** 70% Which of the following are equivalent to 85%? Choose all that apply. A. 0.085 B. 0.85** C. 85/100 D. 19/20

Equeston

64. ## Math

How do I solve -2v - 7 = -23

65. ## Math

-9 -6 (w+5) a.. -15w +5 b.. -15w+30*** c.... -6w -39 d.. -6w+21 plz help quick

W/4 - 4 = 4

67. ## Careers

What career and job qualification can i get with these subjects? Maths lit,tourism,consumer studies,dramatic arts

68. ## math

17. If you were to sketch a circle graph for the data shown in the table below, about what fraction of the circle would represent comedy? 1/2 1/3 1/4 1/5

69. ## History

Which of the following best illustrates how the different customs, cultures, and traditions of New Mexico’s ethnic groups help strengthen and unite the state? A. New Mexico’s ethnic groups are like a handful of straws. B. New Mexico’s ethnic groups

asked by i miss my brother
70. ## math

Explain how the zero property in the problem,2/3(0)=(0)2/3 , is the same with any rational number.

71. ## Math

Hi so this is the connexus unit 7 math test, and I am terrible at math,I really tried but please help. solve the equation -2v-7=-23 And there is more but I can't write them because they are fractions, PLEASE HELP. I cannot fail.

72. ## Math

A baseball bat and baseballs cost \$163.25. The bat costs \\$106.45. . What is the cost of one baseball 163.25-8c=106.45;\\$33.71 8c+106.45=163.25:\\$7.10 8c+163.25=106.45:\\$7.10 8c-106.45=163.25:\\$3.71

What are Alteryx Inc. core competencies?

74. ## Math

An auto parts company is interested in how long people plan to own their cars. They collect the following data by asking 18 car owners how many years they will drive their current car from the time they bought it until they trade it in: 5 7 8 4 9 10 8 5 4

76. ## Science

How does lead get into water?(1 point) It occurs naturally in water. It is a byproduct of detergents interacting with organic matter. It leaches into water as old pipes corrode. It is released into waterways with industrial waste.

77. ## Math

Which operation can you use to solve the equation 2/9x = 12? a.Subtract 12 from each side b.Add -2/9 to each side c.Divide both sides by 9/2 d.Multiply both sides by 9/2

78. ## Math

Find the volume of a square pyramid with a base length of 14.2 cm and a height of 3.9 cm one point 18.5 CM exponent of three 71.0 CM exponent of three 262.1 CM exposure to three 786.4 CM exponent of three

79. ## Statistics

A researcher studying salaries of police officers around the nation surveyed 64 officers and found a mean salary of \$71,228 with a standard deviation of \$7,425. Make a 99% confidence interval for the mean salary of all police officers.

80. ## Math

So just wanna be correct, 5x+6(x-2)-8(x-3) A. 19x+36 @@@ B19x+12 c. 3x-36 D.3x+12

81. ## management

why are some charges not reported as revenue for health care organizations?

82. ## History

Which of these New Mexican ethnic groups is most likely to celebrate its heritage by having a powwow? A. African American B. Asian American C. Mexican American D. Native American

asked by i miss my brother
83. ## social studies

How did knowing how to cut and stack stones help early Andean civilizations grow?

84. ## Writing

Write a good paragraph with the following words: Reluctant Suggest Among Nervous Habits Thank You If You Do 😗

85. ## Algebra

Find the velocity of a ball of mass 0.01kg Midway when projected from a height of 10m and has a maximum height of 5m

86. ## math

The rear gear of a bike has a radius of 1.69" and the front gear has a radius of 4.38" and the tire has a radius of 12.6." How far will the bike travel if the pedals are rotated through 180º?

87. ## math

The path of water from a hose on a fire tugboat can be approximated by the equation y = −0.006x2 + 1.2x + 10, where y is the height, in feet, of the water above the ocean when the water is x feet from the tugboat. When the water from the hose is 6 feet

88. ## Civics

1.In the Supreme Court case, United States v. Windsor the court decided that the Defense of Marriage Act violated which of the following? A.the comity clause B.the Due Process clause of the Fifth Amendment C.state’s rights D.reasonable discrimination

1.00 -3.00

90. ## Algebra

Is the equation true, false, or open? 4y + 8 = 6y +3

91. ## Math

The ratio of red marbles to blue marbles in a jar is 2 to 5. If there are 35 marbles in the jar, how many red marbles are there? Do have the right answer: 2:35

92. ## algebra

-9p-17=10 Answer choices -3 16 18 -16 I think 18

93. ## math

how do i rewrite these so i can graph them? 4x-y=2 x-y=-1

94. ## Math

The ratio of red marbles to blue marbles in a jar is 2 to 5. If there are 35 blue marbles in the jar, how many red marbles are there? 5 x7 =35 2x7=14 red marbles is this right

95. ## Chemistry

How many grams of H are in 1 mole of methane? Really having trouble with this and any help would be really appreciated

96. ## math

Central Park is a rectangular park in New York City. Find the actual perimeter and area of Central Park.

97. ## Math

given that angle ACF ~=~ angle ECF and measure of angle ABF = measure of angle EDF = 90, write a two-column proof to show that Triangle ABF ~=~ triangle EDF

98. ## English

Is this a run-on sentence?: Feudalistic Japan and Europe, followed and were based upon similar ideals, and were formed in the hierarchy; bonds tying individuals together in a descending order: Nobles, warriors to tenants.