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Manhattan
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If x + y = 7 and x – y = 3, then $$x^{2} - y^{2} =$$
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Manhattan
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$${1}\over{{3}+\frac{4}{7}}$$=
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Manhattan
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If $$4^{x} + 4^{-x} = 2$$, which of the following is the value of x?
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Manhattan
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If $$2^{2x – 1} = 8^{y}$$ then x in terms of y equals:
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Manhattan
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If x + y = 3, and $$x^{2} – y^{2} = 12$$, what is the value of x – y?
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Manhattan
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If $$5^ x = y$$, what is x?(1) $$y = 25$$(2) $$y^ 3 = 15,625$$
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Manhattan
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In the rectangular coordinate plane points X and Z lie on the same line through the origin and points W and Y lie on the same line through the origin. If$$ a^{2} + b^{2} = c^{2} + d^{2} and e^{2} + f^{2} = g^{2} + h^{2}$$, what is the value of length XZ – length WY?
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Manhattan
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Which of the following is greater than $$\frac{3}{4} $$?
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Manhattan
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A circular pizza is cut into eight wedge-shaped slices of equal size. What is the circumference of the pizza?(1) The area of each slice measures 2 square inches.(2) The pizza measures 8 inches in diameter.
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Manhattan
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If $ defines a certain operation, is p $ q less than 20?(1) $$ x $ y = 2x^2 - y$$ for all values of x and y(2) p = 4, q = 10
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OG18 OG19 OG20 OG2022
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In 1913, the largely self-taught Indian mathematician Srinivasa Ramanujan mailed 120 of his theorems to three different British mathematicians; only one, G.H.Hardy, recognized the brilliance of these theorems, but thanks to Hardy's recognition, Ramanujan was eventually elected to the Royal Society of London.
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OG18 OG19 OG20 OG2022
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Cost cutting and restructuring has allowed the manufacturing company to lower its projected losses for the second quarter, and they are forecasting a profit before the end of the year.
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OG18 OG19 OG20 OG2022
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Researchers now regard interferon as not a single substance, but it is rather a biological family of complex molecules that play an important, though not entirely defined, role in the immune system.
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OG18 OG19 OG20 OG2022
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The English physician Edward Jenner found that if experimental subjects were deliberately infected with cowpox, which caused only a mild illness, they are immune from smallpox.
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OG18 OG19 OG20 OG2022
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To attract the most talented workers, some companies are offering a wider range of benefits, letting employees pick those most important to them.
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OG18 OG19 OG20 OG2022
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Tides typically range from three to six feet, but while some places show no tides at all, some others, such as the Bay of Fundy, have tides of at least thirty feet and more.
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OG18 OG19 OG20 OG2022
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About 5 million acres in the United States have been invaded by leafy spurge, a herbaceous plant from Eurasia with milky sap that gives mouth sores to cattle, displacing grasses and other cattle food and rendering rangeland worthless.
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OG18 OG19 OG20 OG2022
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Most of the country's biggest daily newspapers had lower circulation in the six months from October 1995 through March 1996 than a similar period a year earlier.
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OG18 OG19 OG20 OG2022
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Chaco Canyon, a settlement of the ancient Anasazi culture in North America, had massive buildings. It must have been a major Anasazi center. Analysis of wood samples shows that some of the timber for the buildings came from the Chuska and San Mateo mountains, 50 miles from Chaco Canyon. Only a major cultural center would have the organizational power to import timber from 50 miles away. In the argument given, the two portions in boldface play which of the following roles?
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OG18 OG19 OG20 OG2022
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The heavy traffic in Masana is a growing drain on the city's economy——the clogging of the streets of the central business district alone cost the economy more than $1.2 billion over the past year. In order to address this problem, officials plan to introduce congestion pricing, by which drivers would pay to enter the city's most heavily trafficked areas during the busiest times of the day.Which of the following, if true, would most strongly indicate that the plan will be a success?
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