Solve for n in the following.8n ? 85 = 89
A. 8
B. 4
C. ?8
D. ?4
Answer: B
Mathematics
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Find the cardinal number for the set.D = {seven}
A. 0 B. 7 C. 5 D. 1
Mathematics
Evaluate the square root.- 
A. 12 B. -12 C. -72 D. Not a real number
Mathematics
Sketch the graph of the equation. Identify the vertex and the intercepts.y = x2 - 5x + 1
A. vertex: 
;
x-intercepts: 
;
y-intercept: (0, 1)
B. vertex: 
;
x-intercepts: 
;
y-intercept: (0, 1)
C. vertex: (2, -9);
x-intercepts: (-1, 0) and (5, 0);
y-intercept: (0, -5)
D. vertex: (0, 1);
x-intercepts: none;
y-intercept: (0, 1)
Mathematics
Multiply the polynomials using the special product formulas. Express the answer as a single polynomial in standard form.(x - 12)2
A. 144x2 - 24x + 144 B. x2 + 144 C. x + 144 D. x2 - 24x + 144
Mathematics