Use trigonometric substitution to write the algebraic expression as a trigonometric function of θ, where 0 < θ < π/2.

√(100) - 4x^(2), x = 5cos(θ)

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds

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