A = √(15²-9²) = √(225-81) = √144 = 12
Answeit is blurry for me take a picture again
Step-by-step explanation:
Answer:
90 or -270
Step-by-step explanation:
Answer:
-3/2+√29/2 or -3/2-√29/2
Step-by-step explanation:
When the graph intercepts with x-axis, the value of y is zero.
So substitute y with zero.
If all 22 tables had 6 people, there would be 132 people seated. There are 13 more than that, so 13 tables have 7 people.