Evaluate the radical expressions or indicate that the root is not a real number.-
A. -180
B. -19
C. 19
D. Not a real number
Answer: B
Mathematics
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Collect like terms.
x + 
y - 
x - 
y + 12
A. 
x + 
y + 12
B. 
x + 
y + 12
C. 
x + 
y + 12
D. 
x + 
y + 12
Mathematics
Solve the problem.A wire of length 7x is bent into the shape of a square. Express the area A of the square as a function of x.
A. A(x) = 
x2
B. A(x) = 
x2
C. A(x) = 
x2
D. A(x) = 
x2
Mathematics
Find the unit cost. Round to the nearest tenth of a cent.
Cheerios cereal, 19 ounces for $3.99 A) $0.210 per ounce B) $3.780 per ounce C) $0.310 per ounce D) $0.790 per ounce E) $4.762 per ounce
Mathematics
Combine like terms and write the resulting polynomial in descending order of powers.8x8 - 7x7 - 5x6 - 2 + 3x8 - 5x7 - 5x6 + 8
A. -11x42 + 6 B. 11x8 - 12x7 - 10x6 + 6 C. -7x8 - 7x7 + 16x6 - 4 D. 11x16 - 12x14 - 10x12 + 6
Mathematics