Find the domain and range of the inverse of the given function.f(x) = 4.9 - 0.64x
A. Domain: all real numbers; range: (-?, 4.9]
B. Domain and range: all real numbers
C. Domain: [4.9, ?); range: all real numbers
D. Domain: all real numbers; range: [4.9, ?)
Answer: B
Mathematics
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Find the greatest common divisor of the number by the method of intersection of sets of divisors.12, 15, 21, and 27
A. 12 B. 4 C. 3 D. 1
Mathematics
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A. 753.532 B. 753.533 C. 753.422 D. 753.522
Mathematics
For the given equation, evaluate the discriminant. How many real solutions are there?6x2 - 5x + 3 = 0
A. 0; one B. -47; none C. -47; two D. 97; two
Mathematics
Find the first term a1 and the common difference d of the arithmetic sequence.0.7, 0.62, 0.54, 0.46, 0.38, . . .
A. a1 = -0.08, d = 0.38 B. a1 = 0.7, d = -0.16 C. a1 = -0.08, d = 0.08 D. a1 = 0.7, d = -0.08
Mathematics