Which three-dimensional figure has double the number of edges as faces? rectangular prism rectangular pyramid triangular prism triangular pyramid

Can you draw an isosceles triangle with only one 80 degree angle?

(a) compute the maclaurin polynomial m2(x) for f(x) = cos x. (b) use the polynomial of part (a) to estimate cos π 12. (c) use a calculator to compute the error made using the estimate from part (b) for the value of cos π 12. remember that the error is defined to be the absolute value of the difference between the true value and the estimate.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}