Solve the given equation by finding the unknown value.81 ÷ ?= 3
A. 29
B. 28
C. 27
D. 30
Answer: C
Mathematics
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Solve the differential equation.y' + 2y = 25
A. y = 25 + ce2x
B. y = 
+ e2x + ce-2x
C. y = 
+ ce2x
D. y = 
+ ce-2x
Mathematics
Solve the problem.The national debt of a small country is $670 billion and the population is 2,604,000. What is the amount of debt per person? Express the answer in scientific notation.
A. $25.70 B. $2.57 × 105 C. $2.57 D. $2.57 × 106
Mathematics
Solve the problem.Find an upper bound for the error in estimating 
using Simpson's Rule with n = 10 steps.
A. 
B. 
C. 
D. 
Mathematics
Determine if matrix A is invertible.A = 
A. Invertible B. Not invertible
Mathematics