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What shape has four sides and three corners?

A polygon with three corners is a triangle, which also has three sides. Four-sided polygons are known as quadrilaterals. Examples of quadrilaterals include the square, rectangle and parallelogram. Common three-dimensional shapes include the cube, triangular prism, cone, cylinder and tetrahedron. None of the shapes have three corners, or vertices. Some, such as the cylinder, have no corners. Others, such as the tetrahedron, have four vertices.

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What is the product of negative 3 squared?

A negative number is never a perfect square. The smallest perfect square possible is zero because zero times zero is zero. The square root of a number is potentially either positive or negative. For example, the square root of nine is three or negative three. Squared odd numbers always have an odd result, and squared even numbers always yield an even result. In this case, negative three is odd, and its square is nine, which is also odd.

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What is the cross product of a vector?

There is one requirement that must be satisfied in order to find a cross product: Both of the vectors need to be three-dimensional vectors. This is because the result of a cross product is another vector, also known as a vector product, and not a number as is the case with the result of the dot product.

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What is a double root in algebra?

A double root can be confirmed mathematically by examining the equation for solving a second-degree polynomial. If the discriminant, or square root of b^2-4*a*c, is equal to zero, then the equation has a double root. Finishing calculating the solution of the equation will yield two answers of the exact same magnitude. Other possible solutions for a polynomial equation include having two roots with two x-axis intersections, or no roots if it doesn't cross the x-axis.

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How do you calculae the mean absolute deviation?

Find the meanFor the given set of values, find the mean by summing all of the values together and dividing by the total number of terms. For example, a set with the three number 5, 7 and 3 has a mean of (5 + 7 + 3)/3 = 5. Set this value to the Greek letter mu. Find the absolute value of x minus muSubtract each term in the series, represented by the variable x, by mu, the mean of all values in the series. Then, take the absolute value of that number. For example, in the set 5, 7 and 3 with a mean of 5, the absolute value of the terms are 0, 2 and 2 respectively. Sum all values of the absolute v..

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What are examples of functions in algebra 2?

To form a relation, it is necessary to write all the inputs and outputs as ordered pairs. For example, in an ordered array (0, 1, 2, 3) one can have a relation in the form of (0,4), (1,5), (2,6) and (3,7).\nA function is a relation where very input has one and only one output. Normally in relations, a single input could have multiple outputs. But with functions, a single input must have a single output.\nA function could be linear, quadratic, cubic, polynomial, rational or irrational. Y = mx +c is an example of a linear function, whereas f(x) = ax2 + bx + c is a quadratic function.\nSome examp..

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What is the square root of 256?

There is no perfect way to find a square root; most people rely on a calculator. However, if a number is a perfect square, then the square root can be found using estimation. For instance, to determine the square root of 256, an estimation can be made. 12x12=144 which is too low; 20x20=400 which is too high. The number must be somewhere in between 12 and 20. Directly in between 12 and 20 is 16, and 16 x 16 = 256.

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What is special about the number 23?

Believers in the mystical or symbolic meaning of 23 have cited several important occurrences surrounding the number. One of the most curious facts cited is that parents each contribute 23 chromosomes to their children's DNA. Other notable facts include that blood circulates the body in 23 seconds and that the Latin alphabet consists of exactly 23 letters.

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What is a list of some benchmark fractions?

Benchmark fractions are useful to know because of how they relate to common percentages and decimals. Every fraction can be converted into a decimal by dividing the denominator, or the bottom number, into the numerator, the top number. The decimal can then be converted into a percentage by multiplying by 100. A list of some benchmark fractions and their equivalents are:1/2 = 50 percent = 0.51/4 = 25 percent = 0.252/5 = 40 percent = 0.43/8 = 37.5 percent = 0.3757/10 = 70 percent = 0.71/9 = 11.11 percent = 0.1111/8 = 12.5 percent = 0.1254/5 = 80 percent = 0.8

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What is the power property of logarithms?

Spelled out, the power property of logarithms is:\nthe logarithm of base b of x to the power of c is equivalent to c multiplied by the logarithm of base b of x\nProving this property is true:\nFirst, let: y = log?b(x)\nSecond, write this in exponent form: x = b^y\nThird, raise both sides by the same power: x^a = (b^y)^a\nFourth, revert back into log form: log?b(x^a) = y*a\nFinally, substitute back our original replacement of y = log?b(x): log?b(x^a) = a * log?b(x)\nThe power property of logarithms is one of the four basic properties of logarithms. The other three are: the multiplication proper..

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