ALL CBSE STUFF Class XI Chapter 10 – Straight Lines Maths Exercise 10.1 Question 1: Draw a quadrilateral in the Cartesian plane‚ whose vertices are (–4‚ 5)‚ (0‚ 7)‚ (5‚ –5) and (–4‚ –2). Also‚ find its area. 14 Answer Let ABCD be the given quadrilateral with vertices A (–4‚ 5)‚ B (0‚ 7)‚ C (5‚ –5)‚ and D (– 4‚ –2). Then‚ by plotting A‚ B‚ C‚ and D on the Cartesian plane and joining AB‚ BC‚ CD‚ and DA‚ SU M IT © 20 the given quadrilateral can be drawn as To find the area of quadrilateral
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Includes Online ~ ~ Access: 6 Computer Adaptive Practice Exims Bonus Question Bank for Geometry See page 7 for details. :Jdanliattan G MAT the new standard Learn using Superior Tools developed by Superior GMAT Instructors • Scored in 99th percentile on the GMAT. • Selected by rigorous face-to-face audition • Trained 100+ hours before teaching • Paid up to 4x the industry standard The Manhattan GNAT Advantage: Sophisticated Hlf you’re SERIOUSabout getting a GREATSCOREon
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to derive a cost formula that can be used to predict cost of an activity for a month‚ a quarter and a year. In preparing cost formula using least squares method‚ intercept represents fixed cost and slope represents the variable cost rate. Important Formula: Cost formula = Fixed cost + Variable rate * Level of activity Part 1 Step 1 Prepare a cost formula using the least squares method. x = $3‚212 + $15.15 * Number of orders received Part 2 Step 1 Use the cost formula to predict receiving
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the square 1. Divide every term by the leading coefficient. 2. Isolate the x2 and the x terms. coeff of x 2 3. Add to both sides . 2 4. Rewrite the LHS as a square. 5. Solve using square root property. 1 2 Solve by quadratic formula Quadratic formula: Discriminant: x= −b ± b2 − 4ac = 0 b2 − 4ac > 0 b2 − 4ac < 0 √ −→ −→ −→ b2 − 4ac 2a one real solution two real solutions two complex solutions Solve Polynomial Equations by Factoring 1. Set to 0. 2. Factor
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parabola is designed on a basic formula‚ Y=ax^2+bx+c‚ which allows it to achieve a curve not seen in a normal line graphed using a Y=mx+b format. To the left is a graph who’s formula is y=x^2‚ where a=1‚ b=0‚ and c=0. I have isolated the (a) factor to see its effects on the parabola. Below is a graph where I have changed the (a) multiple times. The result is that as the (a) decreases‚ the mouth of the parabola widens due to the fact that (a) is essentially the slope of the parabola. Now‚ watch what
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Name ______________________ *********Complete and submit this Algebra 1 Midterm Review Packet when you return 1. Write the Order of Operations: __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ __________________________________________ Evaluate: 2. 3p – q when p = 7 and q = 3 3. when w = 10 and u = 5 4
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the first trading day Date 1. First of all‚ using excel to set up the time index column to arrange the date of the trading day. The range of the data is from date 0 to 1087. In order to calculate the daily return for the all ordinaries index‚ the formula could be used. is the return for each day‚ stands for the all ordinaries index at a specific date t and is the data of the all ordinaries index that one day before the date t. In addition‚ the adjust close is the appropriate data selected to
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Chapter 3 Relationships Between Quantitative Variables Copyright ©2011 Brooks/Cole‚ Cengage Learning 1 Principle Idea: The description and confirmation of relationships between variables are very important in research. Copyright ©2011 Brooks/Cole‚ Cengage Learning 2 Three Tools we will use … • Scatterplot‚ a two-dimensional graph of data values • Correlation‚ a statistic that measures the strength and direction of a linear relationship between two quantitative variables
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equations in slope-intercept form. a. When X = 10‚ Y = 5 and when X = 7‚ Y = 2. Answer: First find the slope of the line: slope = rise/run = (5 – 2)/(10 – 7) = 1. Then‚ write the equation in general form: Y = mX + b and substitute one of the given points and the calculated slope into this general form to find the value of b. Thus‚ Y = X + b and using (X‚ Y) = (10‚ 5) we find b = -5. The equation is therefore Y = X – 5. b. When X = 12‚ Y = 6 and the slope of the
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Inventory Proposal - Team A QRB/501 Inventory Proposal - Team A Team A has chosen Costco as its company to analyze because each of the team members is familiar with Costco. Costco is a retail wholesaler warehouse that was founded in 1983 in Issaquah‚ Washington. Costco cuts out the “middle man” by selling its customers items in bulk at low prices. In our study‚ Costco has a problem with its inventory that needs to be resolved. Team A will be using the Summer Historical Inventory Data provided
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