What are the steps for using a compass and straightedge to construct an equilateral triangle? Drag the steps and drop them in order from start to finish.
Construct UV
Construct UW and UW
Construct a point at one of the two intersection points of circle U and circle V and label this point W.
Construct a circle with point U as the center and a circle with point V as the center with each circle having radius UV

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

Jonathan pays $1.90 per pound for potatoes. he buys 8.3 pounds of potatoes. he determines that he will pay $15.77, before tax, for the potatoes. which best describes the reasonableness of jonathan’s solution? jonathan’s answer is reasonable because there are two decimal places in the factors and two in the product. jonathan’s answer is unreasonable because there are three decimal places in the factors and two in the product. jonathan’s answer is reasonable because is 16, and 16 is close to 15.77. jonathan’s answer is unreasonable because is 8, and 8 is not very close to 15.77.

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.