# Questions Asked onApril 20, 2020

1. ## Algebra

A new wood stain loses 6.5% of its colour every year in a city that experiences a lot of hot, sunny days. What percent of colour will a fence in this city have 6 years after being stained?

2. ## Chemistry

A compound with an empirical formula of C 2H 4Br has a molar mass of 215.90 g/mol. What is the molecular formula?

3. ## Algebra

A newspaper company is selecting four houses to receive a free newspaper. There are 10 houses on your block that are numbered 1-10. What is the probability that the four houses selected will all be even numbered houses? *

4. ## math

Find the circumference of the circle. Round your answer to the nearest hundredth. Use 3.14 or 227 for π. the radius is 3 ft

5. ## Maths

A ship P sails at an average speed of 50 km/h on a bearing of N35°E from a port R. At the same time another ship Q sails at an average speed of 40 km/h on a bearing of S25°W. How far are they after 4 hours?

6. ## Social Studies

What was one benefit of the Allied forces’ taking control of North Africa? A. From there, they could move to invade Italy. B. From there, they could stop Japanese advances. C. North Africa was the site of prisoner-of-war camps. D. The Allies could move

7. ## Math

A kite flying in the air has an 11-ft line attached to it its line is pulled taut and casts a 9-ft shadow find the height of the kite If neccessary, round your answer to the nearest tenth

8. ## Algebra

3. the table shows the number of hours that a group of students spend studying for the SAT during their first week of preparation. the students each add 4 hours to their study times in the second week. what were the mean, median, mode and range of times

9. ## English

Directions: Read lines 17-69 of the story Odysseus closely, and complete the following questions. To earn full credit, answer in COMPLETE SENTENCES, including proper capitalization, and punctuation. Use quotes from the text to justify your answer. 1. At

10. ## Math

Tara has 4 and 4 over 5 feet of rope. Part A: How many 2 over 5 foot pieces can Tara cut from the 4 and 4 over 5 feet of rope? Show your work. (5 points) Part B: Using the information in Part A, interpret the meaning of the quotient in terms of the two

11. ## Math

Which of the following sets of numbers could represent the three sides of a right triangle? A{49,64,80\}{49,64,80} B{45,60,75\}{45,60,75} C{48,55,72\}{48,55,72} D{34,56,65\}{34,56,65}

12. ## math

Andrea bought 12 bagels and 10 muffins at the bakery. Of these items, 2/3 of the bagels were multigrain, and 3/5 of the muffins were bran muffins. Answer the following questions in the 2 spaces below: Blank 1: How many multigrain bagels did Andrea buy?

13. ## math

The table shows the height of a plant over time. Which type of function best models the data? Write an equation to model the data. year: 0 1 2 3 4 height (cm): 81 101 121 141 161 a. Quadratic; y = 20x^2 + 81 b. Exponential; y = 81 ∙ 20^x c. Quadratic; y

14. ## Statistics

On average, what value is expected for the F-ratio if the null hypothesis is true?

15. ## Math

A tree grows vertically on the side of a hill and casts a shadow of 12.2m down the hill when the angle of the sun is 35 degrees. The angle between the tree and it's shadow is 101 degrees. Determine the height of the tree, to the nearest hundredth of a

16. ## history

What might be a result of having only one political party running for office and controlling the government? A. Citizens no longer have any roles or responsibilities. B. There would never be economic change. C. A one-party system increases competition. D.

17. ## Math

One of Robert’s homework problems had the following function table. x | y 0 | 4 2 | 8 4 | 12 6 | 16 Robert concluded that the rule for this function table was y =2x + 4. Which statement best justifies that Robert’s conclusion is correct? A. The

Which is the best way to become a familiar with your company's policies and procedures? A. ask the person who hired you B. look in the employee handbook C. tell you supervisor you need help D. visit the company's website

19. ## math

a flatbed truck is loaded with 7000 pounds of bricks . how many tons of brick are loaded on the truck

20. ## Math

Which integer represents the total change in altitude of an airplane decending 5 feet every second for 15 seconds? A. 65 B. 75 C. - 75 D. - 65 may I get help please and thank you?

21. ## Math

which integer represents the total change in altitude of an airplane descending 5 feet every second for 15 seconds? 65 75 -75 **** -65

22. ## Math

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Input (x) Output (y) 32 20 14 2 ? -6 -2 -14 -10 ? Complete the function table and write the function rule.

23. ## probability

Let X and Y be independent positive random variables. Let Z=X/Y. In what follows, all occurrences of x, y, z are assumed to be positive numbers. 1) Suppose that X and Y are discrete, with known PMFs, p_X and p_Y. Then, pZ|Y(z|y)=pX(?). What is the argument

24. ## Math

can any one help me make a formula for a rectangle with the length of 4 with a width of 5 and a height of 3 or if any one has the answers for the efficiency expert portfolio or is willing to at least help me with the formula id be so greatful im begging

25. ## math

A rectangular tank measures 60cm by 50cm by 40cm. Water flows into the tank at a rate of 8 litres per minute. At this rate, how long will it take to fill the tank?

26. ## Physics

Sheila and her toboggan have a total mass of 45 kg. At one point during her toboggan ride down a frictionless hill, she is 10.0m higher than the bottom of the hill and moving at a speed of 8.0m/s. (5 marks) a) How much gravitational potential energy does

27. ## math

From a barrel of colored marbles you randomly select 7 blue, 5 yellow, 8 red, 4 green, and 6 purple marbles. Find the experimental probability of randomly selecting a marble that is either green or purple. a 3/30 b 4/30 c 10/30 d 6/30

28. ## Maths

7x-8y=-12 ; -4x+2y=3

29. ## Physics

The acceleration due to gravity on the moon is 1.6 N/Kg. An astronaut weighs 670N on the earth's surface A. Find the mass of the astronaut B. His weight on the moon's surface.

30. ## math

Students in a sixth-grade art class are making a mosaic using tiles in the shape of right triangles. The two sides of each tile that meet to form a right angle are 3 centimeters long and 5 centimeters long. If there are 200 tiles in the mosaic, what is the

31. ## History

Which American author was most directly inspired by the ideals of Transcendentalism? Herman Melville Henry David Thoreau Harriet Beecher Stowe James Fennimore Cooper I think it is A.

32. ## Math

a 4 × a 3 = a x

33. ## Probability

Let X be uniform on [0,1/2] . Find the PDF fY(y) of Y=X/(1−X) . For 0≤y≤1 : fY(y)= ?

34. ## Probability

Let X and Y be independent positive random variables. Let Z=X/Y . In what follows, all occurrences of x , y , z are assumed to be positive numbers. 1) Suppose that X and Y are discrete, with known PMFs, pX and pY . Then, pZ|Y(z|y)=pX(?). What is the

35. ## Math

Data: ( 12, 8, 6, 12, 16, 12) mean median mode range

36. ## Math

A school librarian bought 30 books for a total of \$130. A storybook cost \$4, while a science book and math book cost \$6 and \$5 respectively. How many books in each category did she buy? [find 2 possible answers]

37. ## math

Eight less than the product of two and a number xxx.

38. ## History

1. How do Texas cities receive the revenue to be able to provide services? Select all that apply (3 points) A. property taxes*** B. sales taxes*** C. fees and permits D. state funding*** 2. What happened in 1912 that changed the face of city government in

39. ## statistics

Let 𝑋 and 𝑌 be independent positive random variables. Let 𝑍=𝑋/𝑌. In what follows, all occurrences of 𝑥, 𝑦, 𝑧 are assumed to be positive numbers. 1. Suppose that 𝑋 and 𝑌 are discrete, with known PMFs, 𝑝𝑋 and 𝑝𝑌.

40. ## Calc

A toy manufacturer's cost for producing q units of a game is given by C(q) = 1480 + 3.8q + 0.0006q2. If the demand for the game is given by p = 8.6 − 1/440q how many games should be produced to maximize profit? (Round your answer to the nearest integer.)

41. ## Economics

While the balance of trade is the difference between the monetary value of exports and imports, the balance of payments A) counts only goods. B) counts only services. C) counts goods and the financial transactions between countries. D) counts goods,

43. ## Math

convert the unit of weight 3 1/2lb=?oz

44. ## Chemistry

Carbon dioxide gas, measured at 4.0 mol CO2, is confined in a 5.00 L container at 25oC. Calculate the following: What is the numerical temperature, in K, that you will be using in your work? (no units just three digit number) What is the numerical value of

45. ## math

6,3 6,5 8,3 what are the coordinates of the fourth vertex

46. ## Algebra

Equation: 20m = pm^2 m = 0 and m = 5. Determine the value of p.

47. ## math

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Input(x) Output(y) 32 20 14 2 ? −6 -2 -14 -10

48. ## Math

Okay I have this question from a friend 4 x (7 + 6) = (__ x 7) + (__ x 6)

49. ## History

Which of these is true about the constitutions of most nations? They describe the history of monarchs. They protect the rights of the people by stating the country’s basic laws and values. They create the law for all religions. They describe various

50. ## math

Note: Enter your answer and show all the steps that you use to solve this problem in the space provided. Input(x) Output(y) 32 20 14 2 ? −6 -2 -14 -10 ? Complete the function table and write the function rule.

51. ## History

The Panama Canal was completed in the early 1900’s. For several decades it was under the United States control. In 1999, Panama gained full control of the Panama Canal. Which statement best explains why the Panama Canal is significant for development in

52. ## Math

I need help with the independent independent variables quiz part two. Input:32,14,?,-2,-10. Output:20,2,-6,-14,?. I’m honestly not very good at this and I just need help.

53. ## physics

Block A has twice the mass of Block B. What is the relationship between the gravitational forces they exert on each other? They are the same. Block A's is twice as big. Block B's is twice as big. Block A's is one-fourth as big.

54. ## physics

Two objects are launched with the same initial horizontal velocity, but one has twice the initial vertical velocity as the other. Which of the following statements is true? One has twice the total speed as the other They have the same acceleration They

55. ## physics

A planet of mass M has two moons, one with mass m1 and the other with mass m2. If m1 is less than m2, what can we say about the gravitational force between the each moon and the planet? They are the same. Force for m1 is smaller than m2. Insufficient

56. ## music

A quality music program is

57. ## History

What was a big difference between the Texas Constitution of 1836 and the Texas Constitution of 1845? (1 point) A. The Constitution of 1845 did not have a separation of powers like that of the Constitution of 1836. B. The Constitution of 1836 was more in

58. ## calculus

A farmer wants to make three identical rectangular enclosures along a straight river, as in the diagram shown below. If he has 1200 yards of fence, and if the sides along the river need no fence, what should be the dimensions of each enclosure if the total

59. ## Chemistry

Using the following date table list the body fluids in order of increasing ph: stomach acid 1.4 pancreatic juice 8.4 sweet 4.8 urine 5.3 and cerebrospinal fluids 7.3

60. ## Science

• jellyfish • plankton • shark • bacteria • small fish • turtle Please put those for me in order for a food chain.

61. ## math

What is the area of right isosceles triangle with hypothenuse of 8 cm? Please help ASAP!!! :(

62. ## Math

The Slant height is 12 in. The base edge is 20 in. What is the surface area of the roof of the doll house?

63. ## Algebra

If f varies jointly as q2 and h, and f=24 when q=2 and h=2, find f when q=3 and h=5

64. ## Physics

Does anybody know the reason why the angle 22.0°become negative -22.0° when plug into this formula P=IrmsVrms cos (φ) from the question below? Both way will give me the same answer but the reason behind the negative, I don't know. An AC source with Vrms

65. ## Algebra

A load of soil that can cover a garden with an area of 1,100 square feet was donated to a community garden. The gardeners would like to create a rectangular garden that is 10 feet more than twice its width. The equation (?) could be used to find the

66. ## Chemistry

If 1000. J of heat energy are removed from 100. G of water at 35.0 degrees Celsius, what is the final temperature of the water?(csp=4.19J/g•degrees C)

67. ## Math

write the coordinates of point A. A. 2, -3 B. -3,2 C. -2,3 D. 3,-2 And does anyone know all the answers??

68. ## science

What is the pH after 0.150 mol of HCl is added to the buffer from Part A? Assume no volume change on the addition of the acid. Part A =

69. ## math

what is the order of these fractions from gratest to least ; 9/12, 15/16, 3/9, 1/2

70. ## Algebra

Solve this equation: 39=k(10+k)

71. ## Math

Suppose it is now 4:00 PM. What time will it be in 253 hours? Label your answer AM or PM. I think the answer is 5:00 AM, but I don't know how to explain. Please help! (4th grade level explanation)

72. ## math

Let X be uniform on [0,1/2] . Find the PDF fY(y) of Y=X/(1−X) . For 0≤y≤1

73. ## Religion

If objective good means 'always good' and subjective good means 'sometimes good', why might I be inclined to agree with the former over the latter?

74. ## Economics

May I get some help please? Which result will most likely happen if the exchange rate for a country’s currency goes down? A. Its standard of living increases. B. Its comparative advantage in international trade becomes unknown. C. Its exports increase

75. ## math

Solve x^2+6x+13=0

76. ## science

Using an example, explain how being able to understand scientific principles and think scientifically can help you solve problems and answer questions in your everyday life. thanks bros

77. ## Maths

Sean spent 1/5 of his money in one shop and 7/10 in another.what fraction of his money had he left

78. ## History

Transcendentalism was centered on writers and thinkers from which region? (5 points) Appalachia The Midwest New England The South I think It is C.

79. ## science

A hydrometer of mass 24g floats with 6cm of its stem above oil of density 0.8g/km cubic. The area of cross sectioned area of the stem is 0.75cm square. Calculate... (A)mass of oil displaced (B) Volume of

X^2-18x+81=0

81. ## Science

The Greenhouse Effect is caused by the gases in the atmosphere not allowing heat to radiate back into space. Think about being in a car with the windows rolled up on a sunny day. What does this tell you about the surface temperatures of Earth and the Moon?

82. ## RS

The question disappeared so I am posting it again. Examples of objective good. 1. 2. 3. Examples of subjective good. 1. stealing 2. 3. Thank you for your help

83. ## Probability

Problem 1 Suppose that X, Y, and Z are independent, with E[X]=E[Y]=E[Z]=2, and E[X2]=E[Y2]=E[Z2]=5. Find cov(XY,XZ). cov(XY,XZ)= ? Problem 2. Let X be a standard normal random variable. Another random variable is determined as follows. We flip a fair coin

84. ## Probability

1)A random variable X is generated as follows. We flip a coin. With probability p, the result is Heads, and then X is generated according to a PDF fX|H which is uniform on [0,1]. With probability 1−p the result is Tails, and then X is generated according

85. ## History

What events occurred as a result of the Industrial Revolution in the United States? Can you name two?

86. ## Math

Provide the reflected ordered pair for each of the given ordered pairs. a. Reflect the ordered pair (1,−7) across the x-axis b. Reflect the ordered pair (0,4) across the y-axis honestly not sure.

88. ## Math

3x - 3 = 18 x = -7 x= -5 x= -3 x=5 Help pls

89. ## Physics

Calculate the workdone by a person using a machine to raise a load of 300kg through a height of 4m

90. ## Science

The wood thrush is a bird species that lives in deciduous forests in North America. Wood thrushes nest in tall trees, forage for insects and snails in decaying leaf litter on the forest floor, and drink water from nearby freshwater sources. Identify one

91. ## history

What happened to the Mayas during the Guatemalan civil war? The Mayas lost more of their land. The Mayas fighting for human rights were successful and never opposed. The Mayas gained political power. The Mayas gained more of their land. Other:________

92. ## Science

How does the sun compare to other stars in mass, color, and luminosity?

93. ## English

many actors travel around the country to promote_______ latest movies A. her B. theirs C. their D. his.

94. ## Math

You want to buy some popcorn from the concession stand but you need 20 more cents! In your pocket, you have 4 pennies, 2 nickels, and 3 dimes, if you reach in your pocket with out looking and pull out two coins, what is the probability that you will get

95. ## math

Sally wants to make orange paint with yellow and red.To make Orange Sally needs 1lb of red and 3 lbs of yellow. She decides its not enough paint. She wants 40 lbs of orange paint. Write an equation to show what she needs to do to have the right amount of

96. ## Math

The diameter and height of a cylindrical container 28cm and 10cm respectively. How many litres of liquid can the container hold when it is filled

97. ## Science

What are the differences between asterisms, constellations, and clusters? This is what I have so far: Constellations are patterns made up of stars. It has all the stars there to make up the pattern. Asterisms do not have complete patterns.

98. ## Math

Find two mixed numbers so that the sum is 15/3 tenths and the difference is 8/5tenths

99. ## Stats

Suppose that X , Y , and Z are independent, with E[X]=E[Y]=E[Z]=2 , and E[X2]=E[Y2]=E[Z2]=5 . Find cov(XY,XZ) . cov(XY,XZ)=

100. ## math

the front door of a house is 80 inches tall. what is the volume of the door?

101. ## Statistics

Let X be uniform on [0,1/2] . Find the PDF fY(y) of Y=X/(1−X) . For 0≤y≤1 : fY(y)=

102. ## Statistics

Suppose that X , Y , and Z are independent, with E[X]=E[Y]=E[Z]=2 , and E[X2]=E[Y2]=E[Z2]=5 . Find cov(XY,XZ) . cov(XY,XZ)= Let X be a standard normal random variable. Another random variable is determined as follows. We flip a fair coin (independent from

103. ## English

Are the words interesting and interested different

104. ## statistics

1. A random variable X is generated as follows. We flip a coin. With probability p, the result is Heads, and then X is generated according to a PDF fX|H which is uniform on [0,1]. With probability 1−p the result is Tails, and then X is generated

105. ## Algebra

In a classroom of 20 students. 14 of them have brown eyes. If a teacher picks 2 students at random to pass out supplies, what is the probability she chooses 2 students without brown eyes?

106. ## probability

We are given a stick that extends from 0 to x . Its length, x , is the realization of an exponential random variable X , with mean 1 . We break that stick at a point Y that is uniformly distributed over the interval [0,x] . 1. Find joint PDF fX,Y(x,y) of X

107. ## chemistry

In a titration, 21.5 mL of 0.00369 M Ba(OH)2 neutralized 12.1 mL of HCl solution. What is the molarity of the HCL solution? ( I used the titration formula and plugged in the given values. But it's wrong. I know we don't have to divide by any number to the

108. ## Science

In this environment, which trait is adaptive for the birds?

109. ## Math

The city zoo has different admission for adults and children. When three adults and two children went to the zoo, the bill was \$79.21. If two adults and three children got in for \$75.49, then what is the price of an adults ticket and what is the price of a

110. ## math

how many integers between 1 and 149 inclusive are relatively prime to 30

111. ## math

Ali is driving his motorhome. it uses 4 gallons of gas for every 32 miles. complete the table below. if he uses 7 gallons of gas how many miles would he have traveled. and if he used 10 gallons of gas how many miles would he have traveled?

112. ## social studies

Which of these South Asian countries is an Islamic republic? A. Pakistan B. Bangladesh C. Sri Lanka D. Nepal i believe its A, I just wanna check my answers.

113. ## Writing

I was asked to answer this question : Some might argue that identity is fixed by a person’s genetic makeup. Others believe that identity is shaped by a person’s parents, environment, or peer group. Still others believe that it is up to each individual

114. ## math

Mr.kanja,Miss Kanene and Mrs Nyaga have to mark a form three contest for 160 students.They take 5mins,4mins and 12 mins respectively to mark a script.If they all start to mark at 9:00am non-stop,what is the shortest time they can take to complete the

116. ## math

Determine if the following data set follows a linear, quadratic, or exponential model. (−2, 10), (−1,1), (0, −2), (1,1), (2,10) a. Linear b. Exponential c. Quadratic a. Too little information to tell

117. ## math

a cone has a radius of 24 cm and a volume of 1920 cm cubed what is the volume of a similar cone with a radius of 18 cm

118. ## Chemistry

A gas was collected in a 10.0 L cylinder under a pressure of 730 mmHg while at 30.0oC. Determine each of the following: Convert pressure into atm. Consider same number of SF as given. Do NOT include units, just numerical value. Convert temperature into K.

119. ## Chemistry

A 0.500 mol sample of Nitrogen gas has a recorded pressure of 1.22x101 atm while contained in a 1000. mL cylinder. Calculate the temperature, in K, while under these conditions. Solve for the temperature. Final answer shold be in SN while taking SF and

120. ## math

Andre is comparing the weight of his pets. His gerbil weighs 1/4 lb. His kitten weighs 7/8 lb. How many times the gerbil's weight is the kittens weight? Andre is comparing the weight of his pets. His gerbil weighs 1/4lb. His kitten weighs 7/8 lb. How many

121. ## spanish

write the following in spanish in the preterite, you were

122. ## math

what are the two key components of a dilation

123. ## chemistry

calculate ΔG° at 25 °C for CH3OH (l) + O2 (g) --> HCO2H (l) + H2O (l)

124. ## algebra

ten times the sum of a number and 25 is at least 18

125. ## English

What is the correct abbreviation for manager?

126. ## Math

In a decreasing gp the sum of the second and third terms is 36 and the difference between these two terms is 18.find a)the first term b)the nth term

127. ## math

Jimmy ate 13 of his sandwich at lunch. He ate another 23 of the sandwich at dinner. How much of the sandwich did Jimmy eat in all?

128. ## Chemistry

What’s the temperature inside a sealed 22.4 L flask which contains 2.5 grams of hydrogen gas at 35.3 psi?

129. ## Science

Write the balanced chemical equation for the following reaction: A piece of zinc is added to an aqueous solution of copper (II) sulfate

130. ## Math

A pendulum bob swings 5.0 cm on its first oscillation. On each subsequent Oscillation the Bob travels 2/5 of the previous distance. Find the total distance the Bob travels before coming to a rest.

131. ## Science

A wire connects a piece of aluminum suspended in an aqueous solution of aluminum nitrate in a beaker to a piece of iron suspended in an aqueous solution of iron (II) nitrate in another beaker.

132. ## Science

A wire connects a piece of aluminum suspended in an aqueous solution of aluminum nitrate in a beaker to a piece of iron suspended in an aqueous solution of iron (II) nitrate in another beaker. Write the balanced chemical equation for this voltaic cell.