Question

answer the question


write step by step​

Answer 1

Answer:

1)x=7

Step-by-step explanation:

1) 3,5,9,x,11 = 7

(3+5+9+x+11)/5=7

(28+x)/5=7

we want x on its own bring the 5 over we dont like division

28+x=7*5

28+x=35

x=35-28

x=7

(3+5+9+7+11)5=7

sorry dont know what 2 is asking

3) a triangles area is B*H/2 B= base H=height

3=B and 4=H

3*4/2

3*4=12

12/2=6 and because its area we do the units squared