Find the area of the circle, suppose that r = 5 m. Use ?=3.14.
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b. 78.5 m²
Mathematics
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Solve the differential equation.
+ 7
+ 10y = 0
A. y = e5x(C1 cos 2x + C2 sin 2x) B. y = e-2x(C1 cos 5x + C2 sin 5x) C. y = C1e2x + C2e5x D. y = C1e-2x + C2e-5x
Mathematics
Use the table of integrals to find the integral.
?
?
A. 
B. 
C. 
D. 
Mathematics
Solve the system of equations algebraically for real values of x and y.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Simplify. Write your answers in the form of a+bi, where a and b are real numbers.
A. 
B. 
+ 
i
C. 
i
D. 
- 
i
Mathematics