Use your calculator to perform the indicated operations. Give as many digits in your answer as shown on your calculator display.3.1 + (9 - 7) × 14.3
A. 15.40
B. 72.93
C. 124.80
D. 31.70
Answer: D
Mathematics
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Solve the system of equations algebraically for real values of x and y.
?
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Please enter your answer as ordered pairs in the form 
, 
.... The pairs must be separated by commas.
What will be an ideal response?
Mathematics
Add or subtract, if possible. Assume that all variables represent non-negative values. Simplify your answer. 2
+ 9
A. 18
B. 11
C. 11
D. 11
Mathematics
Show that the matrix has no inverse.
What will be an ideal response?
Mathematics
Form a polynomial whose zeros and degree are given. Use a leading coefficient of 1. Zeros: -4, -3, -1, 5; degree 4
A. x4 + 7x2 - 60 B. x4 + 3x3 - 21x2 - 83x - 60 C. x4 - 3x3 - 21x2 + 83x - 60 D. x4 + 3x3 - 21x2 - 60x - 60
Mathematics