Find the missing length in the right triangle. If necessary, round to the nearest tenth.
20 in.
A. 544 in.
B. 23.3 in.
C. 16 in.
D. 272 in.
Answer: B
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Determine if the matrix is in row-echelon form.
A. Yes B. No
Graph the equation using the indicated viewing window.2x + 3y = 6;X min = -10X max = 10X scl = 2Y min = -8Y max = 8Y scl = 2
A. 
B. 
C. 
D. 
Convert the equation to the standard form for a hyperbola by completing the square on x and y.9x2 - 4y2 + 18x + 16y - 43 = 0
A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
Solve the problem.A survey of the interest rates earned by Certificates of Deposit (CDs) showed the following percents for the length of time (in years) for holding the CD. Let length of time represent the independent variable and interest rate represent the dependent variable. Use a graphing utility to draw a scatter diagram and to find the line of best fit. What is the estimate of the interest rate for a CD held for 30 years (to the nearest thousandth)? 
A. 8.675 B. 8.874 C. 8.669 D. 9.064