Find the determinant of the given matrix.
A. -192
B. -180
C. 180
D. 168
Answer: B
Mathematics
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Find the center and radius of the sphere.x2 + (y + 7)2 + (z - 1)2 = 64
A. C(0, 7, -1), a = 64 B. C(0, -7, 1), a = 64 C. C(0, 7, -1), a = 8 D. C(0, -7, 1), a = 8
Mathematics
How many grams of NaCl are needed to make 250mL of 15% saline solution?
A. 0.375g B. 375g C. 37.5g D. 3.75g
Mathematics
Simplify the expression. All exponents should be positive integers.(-4x6y-7) ? (2x-1y)
A. 
B. -8x5y8
C. 
D. 
Mathematics
Completely factor the polynomial or state that the polynomial is prime.6x2 - 13xt + 6t2
A. (2x - 3t)(3x - 2t) B. (2x + 3t)(3x + 2t) C. prime D. (6x - 3t)(x - 2t)
Mathematics