Concept explainers
ASSESSMENT
A bank statement from a local bank shows that a checking account has a balance of
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Problem Solving Approach to Mathematics for Elementary School Teachers
- Question 2 A nickel-titanium alloy is used to make components for jet turbine aircraft engines. Cracking is a potentially serious problem in the final part because it can lead to nonrecoverable failure. A test is run at the parts producer to determine the effect of four factors on cracks. The four factors are: pouring temperature (A), titanium content (B), heat treatment method (C), amount of grain refiner used (D). Two replicates of a 24 design are run, and the length of crack (in mm x10-2) induced in a sample coupon subjected to a standard test is measured. The data are shown in Table 2. 1 (a) Estimate the factor effects. Which factor effects appear to be large? (b) Conduct an analysis of variance. Do any of the factors affect cracking? Use a = 0.05. (c) Write down a regression model that can be used to predict crack length as a function of the significant main effects and interactions you have identified in part (b). (d) Analyze the residuals from this experiment. (e) Is there an…arrow_forwardShow the stepsarrow_forwardThe correct answer is C,i know that we need to use stokes theorem and parametrize the equations then write the equation F with respect to the curve but i cant seem to find a way to do it, the integral should be from 0 to 2pi but i might be wrongcould you show me the steps to get to 18piarrow_forward
- A 10-ft boom is acted upon by the 810-lb force as shown in the figure. D 6 ft 6 ft E B 7 ft C 6 ft 4 ft W Determine the tension in each cable and the reaction at the ball-and-socket joint at A. The tension in cable BD is lb. The tension in cable BE is lb. The reaction at A is ( lb) i + Ib) j. (Include a minus sign if necessary.)arrow_forwardthe correct answer is A could you show me whyarrow_forwardWrite the negation for each of the following statements A. Rory plays basketball and terry plays basketball. B. Rory plays basketball or Jessie plays lacrosse. C. If Tony went to Macdonald’s, then Tony likes hamburgers.arrow_forward
- Galena Park ISD Area and Volume → C Delta Math Student Applicat x Delta Math Student Applicat xb Galena Park ISD Area and V x deltamath.com/app/student/3919669/26697249/697de3b5894b134a6f23adadf8d12b31 DeltaMath Question Watch Video Show Examples ← Back to Home Area and Volume Due: February 12 at 4:00 PM Grade: 0% Drag the yellow point until an accurate "height" of the triangle is drawn. Afterwards, fill out the empty boxes below to determine the area of the triangle. Area of a Triangle (Interactive) Area Puzzles (Rectangles/Squares) Volume of Prisms Calculator Estrella Tejada\ Zavaleta Log Out h=4.65 5 6.5 7 C 4 00 10 1 59 USarrow_forward15. (a) Find all the eigenvalues and their algebraic and geometric multiplicities. (b) Find bases for the corresponding eigenspaces. (c) Is the matrix is diagonalizable? Explain. If it is, then find P and D. 100 00 1 1arrow_forwardrespuestaarrow_forward
- Good Day, Kindly assist me with this query.arrow_forward12. Check to see if the following set of functions is orthogonal on the interval [0,3] with respect to the integral inner product. Show all work. Recall that a set of functions is orthogonal if all pairs of functions are orthogonal. πα {cos (777), sin (7), 1}arrow_forwardA 24-1 design has been used to investigate the effect of four factors on the resistivity of a silicon wafer. The data from this experiment are shown in Table 4. Table 4: Resistivity Experiment for Exercise 5 Run A B с D Resistivity 1 23 2 3 4 5 6 7 8 9 10 11 12 I+I+I+I+Oooo 0 0 ||++TI++o000 33.2 4.6 31.2 9.6 40.6 162.4 39.4 158.6 63.4 62.6 58.7 0 0 60.9 3 (a) Estimate the factor effects. Plot the effect estimates on a normal probability scale. (b) Identify a tentative model for this process. Fit the model and test for curvature. (c) Plot the residuals from the model in part (b) versus the predicted resistivity. Is there any indication on this plot of model inadequacy? (d) Construct a normal probability plot of the residuals. Is there any reason to doubt the validity of the normality assumption?arrow_forward
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