Solve the problem.The table shows the population of a city over the past five years.
We used these data to develop the quadratic function
, which models the population of the city y in millions in the year x. Use the model to find the estimated population in year 10.
A. 1,490,000,000,000
B. 71,628,000
C. 66,427,000
D. 1,490,000
Answer: C
Mathematics
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Solve the problem.Scores on a test are approximately normally distributed with a mean of 70 and a standard deviation of 9. The teacher wants to give A's to the top 10% of students, B's to the next 25%, C's to the next 40%, D's to the next 16%, and F's to the bottom 9%. What is the bottom cutoff for a D grade? Round your answer to the nearest whole number.
A. 56 B. 58 C. 62 D. 65
Mathematics
Write the improper fraction as a mixed number or a whole number.
A.
B.
C.
D.
Mathematics
Find the quotient. Write the answer in standard form.
A. - -
i
B. - i
C. -
i
D. -
i
Mathematics
Solve the absolute value equation. = 0
A. x = -
B. x = -
C. x = - ,
D. no solution
Mathematics