3 cm The diameter of the semi-circle is 3 cm. (semi-circle is half of a circle).
Determine the area of the serai – circle. Give your answer correct to two decimals.​

Find the equation of the trend line (line of best fit). show your work i'm using the points (34,76) (42,91)

65% of students in your school participate in at least one after school activity. if there are 980 students in you school, how many do not participate in an after school activity?

Aright triangle has an area of 21 m2. the dimensions of the triangle are increased by a scale factor of 4. what is the area of the new triangle