This figure is a tetrahedron. What is its surface area? 1
10.4
12
187.2 square units
B12 square units
o
249 6 square units
124.8 square units

Express the following as a function of a single angle. cos(60) cos(-20) - sin(60) sin(-20)

Fred has a spinner that is split into four equal sections: red, blue, green, and yellow. fred spun the spinner 688 times. which of the following would be a good estimate of the number of times the spinner lands on the green section? a. 269 b. 603 c. 344 d. 189

Need asap. solve for the following inequality