Solve the problem.The value of a particular investment follows a pattern of exponential growth. In the year 2017, you invested money in a money market account. The value of your investment t years after 2017 is given by the exponential growth model  When will the account be worth $7788?

A. 2028
B. 2026
C. 2025
D. 2027


Answer: B

Mathematics

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Solve the initial value problem.Differential Equation:  = (3 sec 3t tan 3t) i + j + t2kInitial Condition: r(0) = 9i + j - 5k

A. r(t) = (sec 3t + 8)i  - j + k
B. r(t) = (csc 3t + 8)i + j + (t3 - 5)k
C. r(t) = (csc 3t + 8)i + j + k
D. r(t) = (sec 3t + 8)i + j + k

Mathematics

Solve the problem.Let y = -9x + 221 represent the number of students present in a large class, where x represents the number of hours of study required weekly. What is the rate of change of the number of students in the class with respect to the number of hours of study?

A. -221 students per hour of study time B. 9 students per hour of study time C. -9 students per hour of study time D. 221 students per hour of study time

Mathematics

Add.15 + 21 + (-8)

A. 28 B. 2 C. 44 D. -14

Mathematics

Give the domain and range of the relation.{(12, 9), (-1, 7), (4, -9), (-7, 8), (-8, -4)}

A. Domain: {-1, -8, -7, 12, 4}; Range: {9, 7, -9, 8, -4} B. Domain: {-1, 9, -8, 7, -7}; Range: {-9, 12, 8, 4, -4} C. Domain: {9, 7, -9, 8, -4}; Range: {-1, -8, -7, 12, 4} D. Domain: {-9, 12, 8, 4, -4}; Range: {-1, 9, -8, 7, -7}

Mathematics