Solve the problem.The table shows the population of a city over the past five years.
We used this data to develop the quadratic equation 
, which models the population of the city y in millions in the year x, where x = 0 represents 1995, x = 1 represents 1996, and so on. Use the model to find the estimated population in the year 1997.
A. 1,490,000,000,000
B. 66,822,000
C. 65,538,000
D. 1,490,000
Answer: B
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Write the given number in scientific notation.0.00000037705 Give the answer to five significant digits.
A. 3.7705 × 10-6 B. 3.7705 × 106 C. 3.7705 × 10-7 D. 3.7705 × 107
Use the pH scale to solve the problem. Use the given concentration [H+] of a substance to calculate the pH value of the substance and classify the substance as an acid or a base. Round to two decimal places.[H+] = 4.6 × 10-6
A. pH ? 5.34, acid B. pH ? 6.34, acid C. pH ? 6.66, base D. pH ? 2.76, acid
True or False:x - 7 is not a factor of 7x2 - 91x + 296
Answer the following statement true (T) or false (F)
Solve the following system of equations by substitution. If both variables cancel out, state the solution as no solution or infinitely many solutions.y = 3x + 23y + 15x = -66
A. (-3, -7) B. (-7, -3) C. no solution D. infinitely many solutions