# Questions Asked onDecember 19, 2018

1. ## geometry

Given: ΔАВС, m∠ACB = 90° CD⊥AB , m∠ACD = 30° AC = 6 cm. Find: BD

2. ## Physics

A stone is projected vertically upwards with a velocity of 20m/s. 2s later another stone is similarly projecte? with the same velocity. when the two stones meet the second one is rising at a velocity of 10m/s.neglecting air resistance calculate the length

3. ## Social Studies

What features are associated with the dynasties of the tang (618-907) and song (960-1279)

4. ## Social Studies

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

5. ## English

1) Which of the following passages from the tes best supports the story’s theme of perseverance? A) “ I followed father’s orders faithfully.” B) “ And like father she was not afraid to talk to me like an equal. “ C) I wrote several drafts of it

6. ## Social Studies

Which of the following factors is impeding economic growth in India? A. poor infrastructure B. its command economy C. microlending D. outsourcing Idk

7. ## Social Studies

“The state of monarchy is the supremest thing upon earth; for kings are not only God's lieutenants upon earth, and sit upon God's throne, but even by God himself are called gods.” ―King James I, Works (1609) Which of the following people would have

8. ## Calculus

Rolle's theorem cannot be applied t the function f(x)= ln(x+2) on the interval [-1,2] because a) f is not differentiable on the interval [-1,2] b) f(-1)≠ f(2) c) All of these d) Rolle's theorem can be applied to f(x)= ln(x+2) on the interval [-1,2]

9. ## Math

How might you use a perpendicular bisector or an angle bisector in your everyday life? And why might the orthocenter be the hardest part of the triangle to identify and use for some people?

10. ## integrated science

please help me If the following elements were involved in a chemical reaction, which one would be most likely to form a cation? chlorine (Cl) nitrogen (N) potassium (K) fluorine (F) I think it is A.

11. ## math

ABCD is a quadrilateral inscribed in a circle, as shown below: What equation can be used to solve for angle A? (x + 16) + (6x − 4) = 180 (x + 16) + (x) = 90 (x + 16) − (2x + 16) = 180 (x + 16) − (x) = 90

12. ## chemistry

The active ingredient in some antiperspirants is aluminum chlorohydrate, Al2(OH)5Cl. Analysis of a 2.000-g sample of antiperspirant yields 0.334 g of aluminum. What percent (by mass) of aluminum chlorohydrate is present in the antiperspirant? (Assume that

13. ## History

Of the following statements, which one MOST accurately represents the major difference between the Japanese and European feudal systems? A. In Europe, feudal lords protected peasants in exchange for part of their crops. In Japan, feudal lords protected

14. ## physics

a motorist traveling at 18m/s approaches traffic lights. when he is 30m from the stop line they turn red .it takes 0.7s before he can react by appling the breakes. the car slow down at a rate of 4.6m/s^2 how far from the stop line will he come to rest and

15. ## World History

Look at the table about the government of the Roman republic. ? assemblies of citizens Citizens elect officials and pass laws. Which title would best fit the table? A. Weaknesses of the Early Roman Government B. Dictatorial Features of the Roman Government

16. ## Math

It costs \$1200 to start up a business selling hot dogs on the beach. Each hot dog costs 40c to produce. a)Write the cost equation in slope-intercept form. b) How many hot dogs are produced if the total cost is\$1560.

17. ## Calculus

what could be the units for dy/dx if y is the surface area of a tumor and x is the radius of the tumor? Would it be meters per radian? (Square millimeters per millimeter Millimeters per centimeter Meters per second Gallons per hour Or meters per radian)

18. ## science

Which options accurately describe valid scientific writing? (Select all that apply) rational empirical skeptical biased is it the second and third one?

19. ## history

Who was a Swiss theologian and humanist philosopher that rejected the principle of transubstantiation and believed in the supreme authority of the Bible rather than the clergy?

20. ## Algebra

3. What is the algebraic expression for the word phrase: the product of 5 more than p and 7

21. ## social studies

HELP PLEASE I DONT WANT TO STRESS OVER THIS. How did the defeat of the Aztec and Incan empires enrich the Spanish monarchy? A. Spain began to levy heavy taxes on its American colonists. B. Spain sold its lands in the Americas to other European countries.

22. ## Social Studies

Which of the following factors contributes to South Asia's environmental challenges?

23. ## Math

If U={natural numbers less than 20} and N={factors of 18}, what is N’? What am I supposed to do? I know the factors of 18 are 1, 2,3,6, 9, & 18. I know the natural numbers less than 20 are 1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20. So what am I

24. ## Social studies

Which of the following factors contributed the most to the increase of Spanish power in Europe in the late 1500s? A. the steady supply of wealth flowing into Spain from its colonies in the Americas B. the near-constant warfare it waged in Europe defending

25. ## Math

The size of the beaver population at a national park increases at the rate of 4.3% per year. If the size of the current population is 142, find how many beaver there should be in 4 years. Use the function f(x)=4e^0.043t and round to the nearest whole

26. ## Calculus

The position (feet traveled) of a car is given by the equation s(t)=(1/4)t^2+1 find the time when the car is going the same speed as its average speed over the interval 0 to 10 seconds t=0 t=2.5 t=5 t=10 Never I think it's either t=5 or t=2.5? The end

27. ## Social Studies

Drag and drop the effects of the Congress of Vienna on Europe. Choices may be used once or not at all. Gave more land to Prussia returned to choices list.* Returned French borders to their former locations* Balanced power in Europe Eliminated the Austrian

28. ## AP Physics

A small block of mass m=1 kg glides down (without friction) a circular track of radius R=2 m, starting from rest at height R. At the bottom of the track it hits a massless relaxed spring with spring constant k= 10 N/m, which starts to be compressed as the

29. ## Social studies

What role did the National Assembly play in the conflicts that developed in France after 1789?

30. ## Technical

Which new feature require installation of the Nissan connect door to door app on the users smart phone

31. ## Calculus

If the space below, provide the smaller of the two positive integers that add 30 and have the largest possible product. Numerical Answers Expected!

32. ## Social Studies

Which was the eventual outcome of the conflict between East Pakistan and West Pakistan in 1971? A. India helped West Pakistan gain its independence. B. A communist political party took control of East Pakistan. C. East Pakistan became the nation of

33. ## Calculus

A particle moves along the x-axis so that at time t its position is given by s(t)=(t+3)(t-1)^3,t>0. For what values of t is the velocity of the particle decreasing? a) 00 d) The velocity is never decreasing. Thanks in advance.

34. ## math

Hi There- I really need help with this. I'm kind of confused and don't have an answer. if you could explain it ill give you my answer once I understand it. how does the product of a fraction and a whole number compare to the whole number? A. the product is

35. ## AP Calculus

A particle moves along the x-axis so that at time t its position is given by s(t)=(t+3)(t-1)^3,t>0. For what values of t is the velocity of the particle decreasing? a) 00 d) The velocity is never decreasing. Thanks in advance.

36. ## math

a ketchup packet contains 3/16 ounces of ketchup. how many packets can be made using 24 ounces of ketchup? if anyone knows all of the answers that are right plz give them to me, i am desperate.

37. ## Social Studies

How is Carnival an example of cultural exchange in South America? A. It involves parades and costumed dancers.+++ B. It combines African dance and European religion. C. It involves the Christian practice of fasting. D. It attracts millions of participants

38. ## math

how many solutions does this equation have 3(x - 3) + 3x

39. ## Social Studies

Match the achievement with the dynasty that accomplished it. crossbow wheelbarrow Great Wall of China writing system Qin dynasty Han dynasty Zhou dynasty Shang dynasty

40. ## social studies

what was the biggest threat of traveling west in the manner shown in the illustration?

41. ## Math

The price of a calculator is \$12.50. The sales tax is 7.5%. How much will you pay for the calculator?

42. ## Social Studies

Plz help Which event caused the United States to lead a war in Afghanistan? A. the ISIS attacks on Iraq B. the civil war in Syria C. the September 11, 2001, attacks on New York and Washington, D.C. D. the attacks by Hamas on Israel Why did the Cold War

43. ## Math

The table shows the temperature (in degrees) for eight consecutive days as well as the respective number of ice cream cones an ice cream shop sold on each of these days. Temperature: 68, 77, 83, 85, 89, 94, 96, 99 number of cones: 403, 447, 457, 465, 489,

44. ## Science

Which of the following describes the pathway that the nerve impulses travel while throwing a baseball

45. ## English

Which of the following passages from the text seems most out of character for Phillip? A) Why can't they use aircraft and bomb the submarines? B) Where are we? Where is my mother? C) I don't think Stew Cat is bad luck... I'm glad he is here D) Your saving

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46. ## math

what is c/3=4

47. ## Calculus

Rolle's theorem cannot be applied t the function f(x)= ln(x+2) on the interval [-1,2] because a) f is not differentiable on the interval [-1,2] b) f(-1)≠ f(2) c) All of these d) Rolle's theorem can be applied to f(x)= ln(x+2) on the interval [-1,2]

48. ## math

A nursery records the weights of 6 newborn babies in pounds. The weights are 6.7; 7.1; 7.5; 7.7; 8.1; 8.1; 8.3; 9.0. Then twins are born. The weighed 8.1 and the girl weighed 7.1 pounds. What is the median weight in pounds of the eight babies born? P.S.

49. ## social studies

How has the caste system changed in India and Pakistan? A. It faded from existence as societies became less religious. B. Caste-based discrimination has been outlawed. C. Women can now belong to the highest castes. D. There are now only three castes

50. ## science

Two masses are moving down a slope. One mass is traveling twice as fast as the other mass. How does the kinetic energy of one mass compare to the other? i don't understand

51. ## math

A building is 900 feet tall and 150 feet wide. A scale model of the building is 3 feet tall. Which proportion can be used to find the width, w , of the scale model? A 900 150 = 3 w B 900 3 = w 150 C 150 900 = 3 w D 150 3 = 900 w

52. ## physics

A uniform rod of mass M and length d is initially at rest on a horizontal and frictionless table contained in the xy plane, the plane of the screen. The rod is free to rotate about an axis perpendicular to the plane and passing through the pivot point at a

53. ## Algebra

which of the following appears to be a irrational number? 0.404404440 0.783783783 -4/5 or the square root of 36 i'm stuck help me please

54. ## algebra

the length of a swimming pool is 23 units more than its width.if the 420sq.units, what are their dimensions?

55. ## science

identify the process that represents how organisms grow and replace old or damaged cells. Identify the process that is necessary for sexual reproduction, explain why it is necessary, and identify how this process increases genetic variation. (Hint: Answer

56. ## algebra

divide 75 units into parts,such that the product is 1250

57. ## algebra

divide 50 into two parts such that the product will be a maximum

58. ## Calculus

A gallon rises at the rate of 8 feet per second from a point on the ground 12 feet from an observer. To 2 decimal places in radians per second, find the rate of change of the angle of elevation when the ball on is 9 feet above the ground. Type your answer

59. ## World History

How did Greece civilization respond within society? Succeeded or failed? what were their success and fails? please someone help me anything links answers ANYTHING! semester end in literally 5 hours

60. ## math

Alex practices playing the piano for 2 1/2 hours each week. If Alex practiced for a total of 35 hours, which expression could be used to determine the number of weeks he practiced?

61. ## @Warriors

Ms. Sue is absolutely right! She wrote: Please don't stress. 1. Take a deep breath. [This alone gets oxygen to your brain so you can think better. Remember to do this during tests, too.] 2. Sit down and get comfortable. [This helps you relax and your

62. ## Math

Adrienne had 20 cups of flour. She used 7 3/4 cups of flour for a batch of bread and 3 1/3 cups of flour for a batch of cookies. How much flour did Adrienne have left after she baked the bread and cookies?

63. ## math

The length of the hypotenuse of a right triangle is 26 cm the length of one leg is 24 cm. find the length of the other leg? is the answer 10?

64. ## Calculus

Find the local linear approximation of f(x) = e^(3x) at x = 1. a) y = e^3 b) y = e^(3(x − 1)) c) y = 3e^(3)(x − 1) d) y = 3e^(3)x − 2e^3 What is the answer: a,,b,c, d????

65. ## algebra

One of two complementary angles has a measure of 6º greater than the other. What is the measures of the larger angle? What is the measure of the smaller angle?

66. ## Math

The drama teacher is making costumes for the school play. Each costume requires 1 3/4 yards of material and 2/3 of a yard of ribbon. The material costs \$2.99 per yard and the ribbon costs 59¢ per yard. What is the approximate cost of each costume?

67. ## math

Guests at a winter-themed party were served snowball cookies, snowman cookies, and snowflake cookies. All of the guests who ate snowball cookies also ate snowman cookies. Three-fourths of the snowball eaters did not also eat snowflake cookies. There were

68. ## Science

Why is water wet?

69. ## History

Can you help me find a war that is currently going on in the world and 5 reasons why?

70. ## math

Find the logistic function that satisfies the given conditions. 15) Initial value = 35, limit to growth = 140, passing through (1, 56) Thank you!

71. ## chemistry

Calculate the PH of unbuffered solution after adding 1ml of 0.1M NaOH to 100ml of the solution .PH of unbuffered solution 4.74 .acetate

72. ## Social Studies

Hi, I'm working on an essay and just wanted to know if anyone had an example you can find and might be willing to share with me. I looked and had no luck. Its an essay where you pretend to interview people and tell what happened in colonial South America.

73. ## Math

The size of the beaver

74. ## math

x + 8 < − 2 8 x+8

75. ## pre-cal

I have 2 sets of coordinates (1, 410) and (12, 788) and need to calculate the rate of change over time using y=ae^bt. Since I don't have a coordinate at 0, I can't figure out how to calculate my starting value, or a, to solve this.

76. ## Math

13 inches and 7inches find length of missing side

77. ## Finance

You want to start a summer business to earn money. What will you do? You have to consider how much money you can afford to invest in this business, how much it will cost you to make each item, and how much you’re going to charge for each item. Research

78. ## Geometry

Describe the single transformatthat has the same effect as reflecting across the line x = 1 followed by a reflection across the line x = 5

79. ## Calculus

It would be so helpful if someone could check my answers! A machine starts dumping sand at the rate of 20 m3/min, forming a pile in the shape of a cone. The height of the pile is always twice the length of the base diameter. The volume formula for a right

80. ## history

how did Francis Lubbock's actions affect Texas history over the next 4 years give details to support your answer

81. ## chemistry

reacting species of C8H6NH, potassium hydroxide, aqueous ammonia, and calcium hydroxide

82. ## Math

Solve the inequality. −0.3n ≤ 5.4 n ≥ −1.8 n ≤ −18 n ≤ −1.8 n ≥ −18 please

83. ## math

A 47 degres counterclockwise rotation centered at (3,-1) transforms (2,1) into what point?

84. ## math

An infinte plane is tiled with equilateral triangles of side length 9cm. If you drop a coin of radius 1 cm onto the plane, what is the probability the coin lands within one of the triangles?

85. ## math

sofia deposits birr 3500 in a bank account paying an annual interest rate of 6%. find the amount she has at the end of the fourth year?

86. ## english

Which statement summarizes how the chart illustrates the author's position on ethanol?

87. ## Physics

at ground level g is 9.8m/s^2 suppose the earth starts to increas its angular velocity how long would a day be when people on the equator were just thrown off

88. ## Physics

at ground level g is 9.8m/s^2 suppose the earth starts to increas its angular velocity how long would a day be when people on the equator were just thrown off ?why is the expression thrown off a bad one ?

89. ## Physics

an aeroplane taxis onto the runway going at 10m/s if it can accelerate steadily at 3m/s^2 and its take off speed is 90m/s what length of runway will it need?

90. ## social studies

can someone please check my answer and if i go them wrong can someone help me 1.Which statement best describes the relationship between the Tudor monarchs and Parliament? A. Tudor monarchs rarely consulted Parliament on important matters. ***** B.

91. ## algebra

Mrs. Gifford's class consists of 15 girls and 25 boys.On the first test the mean of the girls’ scores was 80 and the mean of the boy’s scores was 70. What was the class mean? (Remember the class mean is not just averaging the two means)On the second

92. ## Chemistry

In each of the following ionic compounds identify the main group to which X belongs: A. XF2 B. MgX C. X2O3 D. Na2X

93. ## Physics

a stone is projected vertically upward with a velocity of 20,two seconds later a second stone is similarly projected with the same velocity, when the two stones meet,the second one is rising at a velocity of 10, calculate the length of time the second

94. ## science

Read the statement and then apply it to the scenario. Statement In science, it is not possible to prove hypotheses right. This is not the fault of scientists and their experiments; the scientific method is only able to tell scientists if their hypotheses

95. ## Social Studies

PLZ HELP!!!!!!!! MY GRADE DEPENDS ON THIS!!!!! Out of the nearly seven billion people living on Earth, about how many have access to the internet? A. Fewer than one billion B. Slightly less than half C. Slightly more than half D. More than 90 percent What

96. ## Science

Which of the following statements describes the differnece between physical and chemical weathering? PLSSS HELP!!!!

97. ## math

Lee built a scale model of his car. The model was 3 inches long. The scale from the model to Lee’s car was 1 to 60. What was the length of Lee’s car? A 20 inches B 57 inches C 63 inches D 180 inches I don't get it please help

98. ## Math

Solve each inequality. m – 7 < 6 A. m < –1 B. m > 1 C. m < 13 D. m < –13

99. ## Math

Solve the equation. 5h – 9 = –16 + 6h A. 4 B. –7 C. 7 D. 10

100. ## Math

–2v – 7 = –23 A. 15 B. 8 C. –8 D. –15

101. ## Math

Start Fraction w over 4 End Fraction – 4 = 3 A. –4 B. 28 C. 3 D. 11

102. ## Social studies

Why were many countries still dependent on outside help from other nations, such as the United States, following their independence in the 1800s? A. The colonies were weak, and other nations promised to maintain military bases in their countries in order

103. ## Math

3.75x + 3.7 = 1.7 + 1.75x A. 10 B. –1 C. 1 D. .1

104. ## English

Which of the following words best describes the political climate of Curacao in the early 1940s? A) Alarmed B) Discouraged C) Hopeful D) Tense My answer is C.

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105. ## Math

Simplify the expression. –4 – 5(x + 8) A. –5x – 44 B. –5x + 36 C. –x – 8 D. –20x + 8

106. ## Math

Solve the inequality. c + 6 < –20 A. c < –26 B. c < –14 C. c < 26 D. c < 14

107. ## math

Nine more than the product of 15 and Jose's age

108. ## economy

Which of the following factors is impeding economic growth in India? A. poor infrastructure B. its command economy C. microlending D. outsourcing Please hurry!!!!!

109. ## Algebra

I've been struggling with algebra since I started and don't understand hardly any of it and I have this problem 9xy (2/3x)^3=( a0/ ' ^a0/)x^4y I really need help I have several problems like this and don't know what to do someone please explain how I solve

110. ## Social Studies

How has the caste system changed in India and Pakistan?

111. ## Maths

Formulate a general method for finding the distance between two skew (i.e., non intersecting) line in space. (Hint: the shortest line segment joining the two skew lines will be perpendicular to both of them).

112. ## Social studies

Drag and drop the effects of the Congress of Vienna on Europe. Choices may be used once or not at all. gave more land to Prussia returned to choices list.* returned French borders to their former locations* balanced power in Europe eliminated the Austrian

113. ## maths

Let V be the set of vectors (2x-3y, x+2y, -y, 4x) with x,y elements of 2 dimensional space. Addition and scalar multiplication are defined in the same way as on vectors. Prove that V is a vector space. Also, point out a basis of it.

114. ## Spanish

For this question, translate the following word in English. Desarrolladores A) Difficult B) Developers Is it B?

115. ## Civics

Which of the bellow concepts most closely relates to reserved powers, delegates powers, and concurrent powers? A) Shared Powers B) the amendment process C) Judical review D) Federalism

116. ## Math

When jeans sell for \$80, 5 pairs are sold each day. when jeans are on sale for \$40, 13 pairs of jeans are sold each day. a) Calculate the slope b) Calculate the y-intercept

117. ## Civics

Describe a serivice provided by our local government. Please just give me an example of this!

118. ## science

if you need a 1 molar solution, then, you need 1 moles of sugar per liter of solution how many grams per Liter is that?

119. ## algebra

write the ratio as a fraction in simplest form 30:48 a. 1/6 b. 5/8*** < my answer (seems most logical?) c. 30/48 d. 8/5 i'd prefer if ms sue answers me because i dont like cheating

120. ## algebra

im sorry im asking another question lol are 4/6 and 14/21 equivalent ratios? i did 6 x 3.5 and it came up with 21, and 4 x 3.5 and it came up with 14, so i'm guessing it is but i'm mostly having trouble with how to explain it because this is a short essay

121. ## math

George has a square sandbox in back yard. the sandbox has an area of 160 square feet. to the nearest foot, what is the length of one side of the sandbox? is the answer 40 or 12, here are the answer choices 12ft 13ft 40ft 80ft

122. ## Math

Solve 2s^3 - 4r^2 s= 5 r= 1 Is the answer 22?

123. ## geography

state four importance of studying geography?

124. ## Chemistry

Oxidation no of I3 raised to minus charge ion??

125. ## History

how did this message and the events at the alamo affect texans. A. It discouraged texans who realized the battle had been lost. B. It encouraged texans to plead with the united states for support. C. It reminded texans that enslaved people would want

126. ## Math

A taxi cab is purchased for \$30,000. At the end of 10 years, it is sold for scrap for \$2000. Find the depreciation equation in slope-intercept form/