Complete the magic (addition) square.Use each number 17, 18, 19, 20, 21, 22, 23, 24, and 25 once.
A. 
B. 
C. 
D. 
Answer: A
Mathematics
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Write a percent for both the shaded and unshaded parts of the figure.
A. 0.12% shaded; 88% unshaded B. 12% shaded; 88% unshaded C. 0.12% shaded; 99.88% unshaded D. 10% shaded; 90% unshaded
Mathematics
Solve using the substitution method. Use a graphing calculator to check your answer. 8x + 8y = 75x + 5y = 10
A. (1, 1) B. (3, 5) C. No solution D. Infinitely many solutions
Mathematics
Solve.5x + 2y + z = -112x - 3y - z = 177x + y + 2z = -4
A. (3, 0, -4) B. (0, -6, 1) C. (0, 6, -1) D. (-3, 0, 4)
Mathematics
Verify the identity.cot x sec4 x = cot x + 2 tan x + tan3 x
What will be an ideal response?
Mathematics