Solve the differential equation y'+(y/x)=y^(2) using the substitution u=(y/x)

Use a calculator to find a decimal approximation for the indicated function values. Round your answer to four decimal places.sec 1.607

A. -0.0362 B. -27.6094 C. 0.9993 D. -27.6275

Simplify the expression by using the order of operations.11 ?  - 13 ? 

A. 107 B. 3 C. 67 D. 223

For the given functions f and g, find the requested function and state its domain.f(x) = x + 3; g(x) = 7x2Find f - g.

A. (f - g)(x) = -7x2 + x + 3; all real numbers B. (f - g)(x) = 7x2 + x + 3; all real numbers C. (f - g)(x) = 7x2 - x - 3; all real numbers D. (f - g)(x) = -7x2 + x + 3; {x|x ? -3}

Find the expected value.Suppose that 1,000 tickets are sold for a raffle that has the following prizes: one $300 prize, two $100 prizes, and one hundred $1 prizes. What is expected value of a ticket?

A. $300 B. $0.60 C. $1 D. $100