Questions by ntorphy - Page 28

a square has an area of 64cm^2 find the perimeterofthe square
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Find the area of the triangle. ANSWERS: A) 84 m2 B) 66 m2 C) 42 m2 D) 132 m2
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An educator claims that the average salary of substitute teachers in school districts is less than $60 per day. A random sample of 8 school districts is selected, and the daily salaries are 60, 56, 60, 55, 70, 55, 60, and 55. Is there enough evidence to support the educators claim at 10% level of significance? (HELP: The sample mean is 58.88, and the sample standard deviation is 5.08)
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A boy has 10 cookies. His sister has 2.5 times as many. How many does the sister have?Make a Selection:A.12.5B.20.5C. 25D. 25.5NE
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If g(x, y) = x2 + y2 6x, find the gradient vector g(2, 6) and use it to find the tangent line to the level curve g(x, y) = 28 at the point (2, 6).
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The reason people commit informal fallacies is simple and straightforward.
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number of SO2 molecules in 1.28 mol of SO2
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What is the range of possible sizes for side x? PLEASE HELP
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What is the sum of the first 18 terms in the arithmetic sequence 3+7+11+...?What are the coordinates of the point where the line y = -\frac{4}{5}x + 80 intersects the x -axis?
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Particle A has charge qA and particle B has charge qB. When they are separated by a distance ri, they experience an attractive force Fi. The particles are moved without altering their charges. Now they experience an attractive force with a magnitude of 36Fi. Find an expression for their new separation.
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Length: 4 - 7(3x + 4y)Width: 3x(-2y)Write a simplified expression for the perimeter of the rectangle.___ - x - ___y - ___xy
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5x +3y=210 x+y=60 Witch can represent a linear equation
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The average speed of a nitrogen molecule in air is about 6.70102 m/s, and its mass is 4.6810-26 kg.(a) If it takes 3.0010-13 s for a nitrogen molecule to hit a wall and rebound with the same speed butmoving in the opposite direction, what is the average acceleration of the molecule during this timeinterval? (b) What average force does the molecule exert on the wall? (c) What is the total force exertedon the wall if it is struck by 1015 such molecules all at once?
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Which of the following is NOT an element of organizational structure? A) Well-articulated mission, vision, and value statements. B) Formal reporting relationships. C) Grouping together of individuals into departments. D) Systems designed to ensure effective communication
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Whats one example of a real-world problem which you might use knowledge from biological anthropology to help solve?
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What is defined as "the actualfunction of what something cando in an ecosystem versus what itcan fundamentally do"?A. Climatic nicheB. Realized nicheC. Approximate niche
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A sample of bacteria is decaying according to a half-life model. If the sample begins with 800 bacteria, and after 13 minutes there are 320 bacteria, after how many minutes will there be 15 bacteria remaining? Round your answer to the nearest whole number.
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Determine the product of (4.2 101) (5.7 101). Write your answer in scientific notation. Question 7 options: A) 239.4 101 B) 2.394 101 C) 23.94 101 D) 239.4 102
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A block measure 22cm by 11cm by 7cm. How many of these blocks will be needed to build a wall 5 1/2m long, 22cm thick and 3 1/2m high.
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The relation R is shown below as a list of orderedpairs.R={(1, 4), (1, 3), (-1,3), (2, 15)}Which ordered pairs prevent this relation frombeing a function?0 (1, 4) and (1,3), because they have the sameX-value(1, 3) and (-1, 3), because they have thesame y-value
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When the balance of an equity account, like Capital Stock, increases, it means that the account has been: Multiple Choice Deposited None of the choices are correct Credited Debited
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Based on the number of valence electrons indicated by its location in the periodic table, which element's behavior would you predict to be closest tothat of potassium (K)?A. Chromium (Cr)B. Strontium (Sr)c. Krypton (Kr)D. Francium (Fr)
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Sheri's brother gave Sam his collection of stamps when she left for college. At thattime, the value of the collection was $420. Eight years later, the stamp collectionwas worth $980. What is the rate of change?
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Consider two soap bubbles with radius r1 and r2 (r1
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