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Standard form of circle: (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius 1.) This is correct, but it would be better if you just wrote it as x^2 + y^2 = 17. 2.) The center is (0, 1) and the radius is 1. To find the center, just match it up with the (h, k) values in...

Standard form of circle: (x - h)^2 + (y - k)^2 = r^2, where (h, k) is the center and r is the radius 1.) This is correct, but it would be better if you just wrote it as x^2 + y^2 = 17. 2.) The center is (0, 1) and the radius is 1. To find the center, just match it up with the (h, k) values in...

It's a square because the diagonals perpendicularly bisect each other and the diagonals are congruent.

It's a square because the diagonals perpendicularly bisect each other and the diagonals are congruent.

It's a square because the diagonals perpendicularly bisect each other and the diagonals are congruent.

Remember cosine = adjacent/hypotenuse, sine = opposite/hypotenuse, tangent = opposite/adjacent or sine/cosine, secant = 1/cosine = hypotenuse/adjacent, cosecant = 1/sine = hypotenuse/opposite, and cotangent = 1/tan = adjacent/opposite or cosine/sine. Use the Pythagorean theorem a^2 + b^2 = c^2...

Use the half-life formula a = x(0.5)^(t/h), where a is the future amount, x is the original amount, t is the time in years, and h is the half-life in years. Since you are finding a percent, let x = 100. The half-life h = 250,000 years and the time t = 5,000 years. a = x(0.5)^(t/h) =...