Provide an appropriate response.Write an expression that represents the perimeter of the equilateral triangle (a triangle with three sides of equal length). Simplify the expression.
A. (9x + 12) in.
B. (18x + 8) in.
C. (9x + 4) in.
D. (18x + 24) in.
Answer: D
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Find the interval(s) for b such that the equation has at least one real solution and write a conjecture about the interval(s) based on the values of the coefficients
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A. 
If 
and 
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or 
B.
If 
and 
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or 
C.
If 
and 
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or 
D.
If 
and 
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or 
E.
If 
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Solve the problem.Using the numerals 0 through 9, how many 6-digit serial numbers can be made if the first digit must be 0 or 1 and numerals may be repeated?
A. 200,000 B. 100 C. 1,000,000 D. 118,098
Factor the polynomial completely. If the polynomial cannot be factored, write "prime."3(a + 13) - y(a + 13)
A. (a + 13)(3 + y) B. (a + 13)(3 - y) C. (a - 13)(y - 3) D. Prime
Solve the problem.The forearm length in centimeters, A, can be approximated by a linear function of the foot length in centimeters, f. Use the points (25, 24) and (33, 33) to find a linear model for the data in the table below. 
A. A = f - 1 B. A = 1.125f + 4.125 C. A = 0.889f + 1.775 D. A = 1.125f - 4.125