Exam 7: Arithmetic Sequence: Common Difference and First n Terms

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Provide an appropriate response. -Explain in your own words how you can tell from the equation whether the graph is an ellipse or a hyperbola.

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A small start-up consulting company hopes to have 6 times the clientele it had the previous year for the next 5 years. If the company just meets its targets each of the 5 years and it had 6 clients to begin with, how many Clients does it have at the end of 5 years?

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A rectangular board is 13 by 20 units. The foci of an ellipse are located to produce the largest area. A string is connected to the foci and pulled taut by a pencil in order to draw the ellipse. Find the length of the string.

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Graph the conic section. - x2−4y−4x=0x ^ { 2 } - 4 y - 4 x = 0  Graph the conic section. - x ^ { 2 } - 4 y - 4 x = 0

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Write the binomial expansion of the expression. - (13x+5)3\left( \frac { 1 } { 3 } x + 5 \right) ^ { 3 }

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Determine the two equations necessary to graph the ellipse with a graphing calculator. - (x−5)236+y249=1\frac { ( x - 5 ) ^ { 2 } } { 36 } + \frac { y ^ { 2 } } { 49 } = 1

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If the vertex of the graph of a quadratic function lies in quadrant II and the graph is concave up, how many x-intercepts does the graph have?

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A game involves choosing 4 numbers from the numbers 1 through 13. In how many ways can this be done?

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Find a general term an for the geometric sequence. - a1=−15,r=7a _ { 1 } = - \frac { 1 } { 5 } , r = 7

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Evaluate the sum using the given information. - x1=−1,x2=2,x3=−4,x4=1x _ { 1 } = - 1 , x _ { 2 } = 2 , x _ { 3 } = - 4 , x _ { 4 } = 1 , and x5=−2x _ { 5 } = - 2 ∑i=15(2xi+xi)\sum _ { i = 1 } ^ { 5 } \left( 2 x _ { i } + x _ { i } \right)

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How many ways can a committee of 5 be selected from a club with 10 members?

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Graph the conic section. - x2−6x−4y+37=0x^{2}-6 x-4 y+37=0  Graph the conic section. - x^{2}-6 x-4 y+37=0

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Find a general term an for the geometric sequence. - a1=3,r=3\mathrm { a } _ { 1 } = 3 , \mathrm { r } = 3

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An elliptical riding path is to be built on a rectangular piece of property that measures 10 mi by 6 mi. Find an equation for the ellipse if the path is to touch the center of the property line on all 4 sides An elliptical riding path is to be built on a rectangular piece of property that measures 10 mi by 6 mi. Find an equation for the ellipse if the path is to touch the center of the property line on all 4 sides

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One digit from the number 7,212,662 is written on each of seven cards. What is the probability of drawing a card that shows 7, 2, or 1?

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Find the center, foci, and asymptotes of the hyperbola. - x281−y2144=1\frac { x ^ { 2 } } { 81 } - \frac { y ^ { 2 } } { 144 } = 1

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List the elements in the sample space of the experiment. -A 6-sided die is rolled. The sides contain the numbers 1, 2, 3, 4, 5, 6. List the sample space of rolling one die.

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Match the equation of the parabola with the appropriate description. - x+5=2(y+6)2x + 5 = 2 ( y + 6 ) ^ { 2 }

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Write the binomial expansion of the expression. - (3x2+2)3\left( 3 x ^ { 2 } + 2 \right) ^ { 3 }

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Write an equation for the parabola with vertex at the origin. -Through (−9,9)( - 9,9 ) , opening to the left

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