After five games a football team's goal average is 2.8. After one more game the goal average is 3. The number of goals scored in the 6th game was: A. 3
B. 4
C. 5
D. 6
E. 7
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In triangle △abc, ∠abc=90°, bh is an altitude. find the missing lengths. ab=4 and bc=3, find ah, ch and bh.

Match the term on the left with its image or description on the right. match term definition diameter a) circle a and a line segment connecting points b and c which are on the circle. circumference b) circle a and a line segment connecting points b and c which are on the circle. radius c) a piece of the circumference of a circle secant d) two circles that share the same center. concentric circles e) the distance around a circle arc f) a segment between two points on a circle that passes through its center

The lines shown below are parallel. if the green line has a slope of -1, what is the slope of the red line?