Determine the real solutions to the system of nonlinear equations.y = -x2 + 13x2 + y2 = 25

A. (4, -3), (-4, -3)
B. (3, 4), (-3, 4)
C. (4, -3), (3, 4), (-3, 4), (-4, -3)
D. (9, 94), (16, 269)

Answer: C

Mathematics

You might also like to view...

Solve the problem.Find the derivative of the function at the point in the direction in which the function decreases most rapidly.

A. -
B. -
C. -
D. -

View

Mathematics

Two formulas that approximate the dosage of a drug prescribed for children are: Young's Rule: C = and Cowling's Rule: C = .In each formula, A = the child's age in years, D = an adult dosage, and C = the proper child's dosage. The formulas apply for ages 2 through 13. Use these formulas to solve the problem.Use Young's Rule to find the difference in a child's dosage for a 13-year-old child and a 5-year-old child. Express the answer as a single rational (or fractional) expression in terms of D.