Graph the numbers on the real number line.x ? -7
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Answer: A
Mathematics
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Calculate the arc length S and area A for each of the following sectors. Round to the nearest whole number if necessary.a = 25°, r = 45 ft
A. S = 20 ft, A = 442 sq ft B. S = 20 ft, A = 432 sq ft C. S = 22 ft, A = 442 sq ft D. S = 18 ft, A = 342 sq ft
Mathematics
Factor by grouping.15a3 + 12a2b - 25ab2 - 20b3
A. (3a2 + 5b2)(5a - 4b) B. (3a2 - 5b2)(5a + 4b) C. (15a2 - 5b2)(a + 4b) D. (3a2 - 5b)(5a + 4b)
Mathematics
Solve the problem.Find (fg)(x) given f(x) = 3x + 1 and g(x) = 5x2 - 3.
A. 15x3 - 9x2 + 5x - 3 B. 3x3 + 5x2 - 3 C. 15x3 + 5x2 - 9x - 3 D. 15x3 - 3
Mathematics
Divide using the quotient rule for exponents. Write the result with positive exponents. Assume that variables in the denominator are not equal to 0. 
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B. 
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Mathematics