Solve the equation. If the solutions involve square roots, give both the exact solutions and the approximate solutions to three decimal places.
- 
= 
A. 
? 3.162
B. 14
C. 7
D. -7
Answer: D
Mathematics
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Express the sum using summation notation. Use a lower limit of summation, not necessarily 1, and k for the index of summation.(a + 1) + (a + b) + (a + b2) + . . . + (a + bn)
A. 
B. 
C. 
D. 
Mathematics
Use the graph of a power function and transformations to sketch the graph of the polynomial function.f(x) = -2(x + 4)4 + 3
A. 
B. 
C. 
D. 
Mathematics
Find the center and radius of the circle with the given equation. x2 + y2 = 4
A. Center (2, 2), r = 4 B. Center (0, 0), r = 2 C. Center (2, 2), r = 2 D. Center (0, 0), r = 4
Mathematics
Convert the number in the sentence to standard notation.The average distance from Mars to the Sun is 227.9 million kilometers.
A. 227,000,900,000 B. 227,090,000 C. 227,900,000 D. 227,009,000
Mathematics