Find the sum of the indicated terms of the geometric sequence.-10, 40, -160 ... (to 6 terms)
Fill in the blank(s) with the appropriate word(s).
8,190
Mathematics
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Suppose that y is inversely proportional to x. Use the given information to find the constant of proportionality k. Then use y = 
to find y for the given value of x.y = 17.5 when x = 5;
Find y given x = 25.
A. k = 3.5; y = 87.5 B. k = 77.5; y = 3.5 C. k = 87.5; y = 3.5 D. k = 100; y = 4
Mathematics
Decide whether or not the ordered pair is a solution of the system.(28, 4)y = 
x4x + y = 108
A. Yes B. No
Mathematics
Write the number in scientific notation.The average distance from Mars to the Sun is 227,900,000 kilometers.
A. 2.279 × 108 km. B. 2.279 × 109 km. C. 2.279 × 107 km. D. 227.9 × 106 km.
Mathematics
Perform the matrix row operation (or operations) and write the new matrix.
-4R1 + R2
A. 
B. 
C. 
D. 
Mathematics