# Questions Asked onJuly 5, 2017

1. ## Geometry

Quadrilateral ABCD is a parallelogram. If adjacent angles are congruent, which statement must be true? A. Quadrilateral ABCD is a square. B. Quadrilateral ABCD is a rhombus. C. Quadrilateral ABCD is a rectangle. D. Quadrilateral ABCD is an isosceles

2. ## Maths

A rope is wound 50 times round a cylinder of radius 25cm.How long is the rope?Use the value 3,41

3. ## maths

Between 1200 and 1300 3 in the tens place Even Numbr One digit is repeated

4. ## astronomy

Mars has an albedo of 15. Given that it doesn't have much of an atmosphere, estimate the mean surface temperature on Mars. Note: the semimajor axis of the orbit of Mars is 1.52 AU. (Please enter your answer in units of degrees Kelvin)

5. ## STATISTIC MECHANICS

An insulated beaker with negligible mass contains 0.250 kg of water at a temperatur 75.0°C.e of How many kilograms of ice at a temperature of -20.0°C must be dropped into the water to make the final temperature of the system 40.0°C?

6. ## Maths

If zeros of p(x)=2x2-7x+k are reciprocals of each other,then find the value of me

7. ## algebra

The fifth term of an A.P exceeds twice the second term by 1.The tenth term exceeds twice the fourth term by 3. Find:1.the first term. 2.the common difference. 3.the sum of first twenty five terms.

8. ## maths

Two angles are adjacent and form an angle of 150degree. The larger angle is 30 degree more than twice the smaller angle.find the angles

9. ## Math

Through how many radians does the minute hand of a clock rotate in 50 min? In 7 h?

10. ## science

a loaf of bread has a mass of 2000g and a volume of 500 cm3. what is the density of the bread

11. ## MATH 123

Darla purchased a new car during a special sales promotion by the manufacturer. She secured a loan from the manufacturer in the amount of \$23,000 at a rate of 4.6%/year compounded monthly. Her bank is now charging 6.2%/year compounded monthly for new car

12. ## STATISTICS

Determine which of the four levels of measurement is most appropriate. Heights of survey respondents.

13. ## Discrete or continuous help

Identify the given random variable as being discrete or continuous. The number of stories in a specific Manhattan office building.

14. ## Math

Frank bought supplies for school. In the first store, he spent half of his money plus \$10. In the second store, he spent half of what he had left, plus \$10. In the third store, he spent 80% of what he had left. He came home with \$5. How much did he start

15. ## physics

a store advertises carpet that costs \$ 18.95 per square yard. how much does that carpet cost per square meter?

16. ## astronomy

The red supergiant Betelgeuse has a surface temperature of 3600 K. a) Using the fact that the Sun's surface temperature is about 5800 K and that its continuous spectrum peaks at a wavelength of 500 nm, find the peak wavelength of Betelgeuse's continuous

17. ## Economics

What does it mean to influence government? Why should active citizens participate in government? *Influencing government means to help vote, help choose elected officials, contact representatives, etc. Active citizens should participate because they have

18. ## science

A weight of 500kg is suspended by two chains 1.5m and 2.7mrespectively.the chains are attached to a beam that is 3.746m in length. The distance from the suspension to the ground being 900m. A.Calculate the load. B.the vertical and horizontal reactions at

19. ## Maths

In addition to spanning a river which is 50 metres wide, a straight bridge also has considerable overlap of both banks of the river. One third of the bridge overlaps one bank and one half overlaps the other bank. The total length,in metres, of this bridge

20. ## Calc

can someone help me get the first and second derviative for X square root 4-X^2. For the first derviative I did this by using the equation F(x)g'(x)+g(x)f'(x). After using this my final answer is looking something like -X^2/(4-x^2)^1/2+ (4-x^2)^1/2 I am

21. ## chemistry

while chloromethane is reactive towards nucleophiles, the Grignard reagent produced from chloromethane is reactive towards electrophiles. explain pl.

22. ## Stats

In the last Canadian census, 2.6% of all Ontario residents declared themselves to be Ukrainian ethnic origin. In a recent survey of 500 Ontario residents, 3.1% of people declared themselves to be of Ukrainian ethnic origin. Using the statistical meanings

23. ## History/Economics

What did President Johnson announce to the American people during his television address on March 31, 1968? Select all that apply. He would not seek another term as president. He would further increase U.S. involvement in Vietnam. He would support Senator

24. ## History

What does it mean to influence government? Why should active citizens participate in government? What is the media? Explain how the media can influence government. What is an interest group? Explain how interest groups can influence government, and give an

25. ## English

17. Some people believe that feelings should be nurtured and cherished, while others argue that feelings should be curbed and kept under control. Indicate one poem that demonstrates the desire to restrain emotion and one poem that demonstrates the desire

26. ## Science : physics

An electron travels in a circle of radius 6.1 m while under the influence of an unknown magnetic field, directed perpendicular to its velocity. If the particle makes 6.6 trillion complete revolutions per second, determine the magnitude of the magnetic

27. ## Chemistry

When calcium iodate is added to water at 25 degrees Celsius, the equilibrium concentration of calcium ion was found to be 0.011M. Calculate the value of Ksp for this salt.

28. ## History

What does it mean to influence government? Why should active citizens participate in government? What is the media? Explain how the media can influence government. What is an interest group? Explain how interest groups can influence government, and give an

29. ## CALC

can someon help me find the horzontial and verticle asymptotes for x square root 4-x^2. For HA someone told me none but I dont understand how and is the VA -2 and 2. Please help and show all work Thank you

30. ## Chem

When 20.0mL of 1.40M solution of calcium nitrate is mixed with 70.0mL of 0.234M potassium iodate, a precipitate Ca (IO3)2 is formed. Calculate the concentrations of both NO3- and IO3- before mixing and after mixing.

31. ## Chemistry

When 20.0mL of 1.40M solution of calcium nitrate is mixed with 70.0mL of 0.234M potassium iodate, a precipitate Ca (IO3)2 is formed. Calculate the concentrations of both NO3- and IO3- before mixing and after mixing

32. ## Analytic Chemistry

Barium Sulfate precipitated from a 1.300 sample was contaminated with 9.4 mg of Fe2(SO4)3 and weighed a total of 314.0 mg. Calculate the apparent % BaSO4 and True % BaSO4

33. ## STATISTICS

A bag contains 5 purple marbles, 7 yellow marbles, and 3 orange marbles. If two marbles are selected from the bag: What is the probability that a yellow then an orange are chosen without replacement.

34. ## chemistry

sodium chloride has a molar mass of 58.4g/mole. how many grams of sodium chloride are needed to make 500.mL of a 0.0250 molar solution?

35. ## math

Study the ways of raising a loan to buy a car or a house. You are required to visit personally two banks at least and ask for the documents required by the bank and the whole process of raising a loan. Describe the whole process in written on project

36. ## Maths

Cos^4(θ)/cos^2(α) + sin^4(θ)/ sin^2(α)=1 Prove that cos^4 alpha/cos^ thetha + sin^4alpha/ sin^2thetha= 1

37. ## English

1. [(Yoga) The Tree Pose] Try to hold it for 30 seconds. Repeat this with your left foot. 2. [(Yoga) The Tree Pose] Try to hold it for 30 seconds. Do this with your left foot. -------------------------------------- #1 is correct one. One used 'Do' instead

38. ## biological science

please discuss physiologically the importance of human tissues

39. ## English

Do you know the website where we can get questions and answers in English about many kinds of subjects for elementary school students?