A square and equilateral triangle have the same perimeters. The length of a side of the triangle is 4x+2 inches. The length of a side of the square is 2x+2 inches. Write and solve and equation to find the side length of the triangle, the side length of the square and their perimeter

Can someone me with the property questions for 12 13 and 14 plz

If abcde is reflected over the x-axis and then translated 3 units left, what are the new coordinates d? are he re

A. find the power of the test, when the null hypothesis assumes a population mean of mu = 450, with a population standard deviation of 156, the sample size is 5 and the true mean is 638.47 with confidence intervals of 95 b. find the power of the test, when the null hypothesis assumes a population mean of mu = 644, with a population standard deviation of 174, the sample size is 3 and the true mean is 744.04 with confidence intervals of 95% c. find the power of the test, when the null hypothesis assumes a population mean of mu = 510, with a population standard deviation of 126, the sample size is 10 and the true mean is 529.44 with confidence intervals of 95