Answer:
AOB = 55°
BOC = 87°
COD = 130°
AOD = 88°
Step-by-step explanation:
AOB = a°
= 55°
BOC = b°
= 87°
COD = c°
= 130°
AOD = 360°-AOB-BOC-COD
= 360°- a° - b° - c°
= 360° - 55° - 87° - 130°
= 88°
(Correct me if i am wrong)
Answer:
18
Step-by-step explanation:
use this formula
A=(a+b
)/2 x h
****
A= (4+8)/2 x 3
A=(12)/2 x 3
A= 6 x 3
A= 18
Answer: i think it might be 1.5s and 42ft but i'm not positive that answers correct
Step-by-step explanation:
For every 6000 square feet in a building, there is one fire extinguisher.
So for 135000 square feet, the equation is like direct proportion (because the more the square feet, the more fire extinguishers needed).
1 : 6000
x : 135000
Multiply x with 6000, and 1 with 135000.
So, the result is:
6000x = 135000
x = 135000/6000
x = 22.5
Answer:
512
Step-by-step explanation:
1st term =a
common ratio = r
a*r with the exponent n-1
a=4 r=2 n=8
8th term 4*(2 at the seventh power)= 512
OR
1st term :4
2nd term = 4*2=8
3rd term 8*2=16
4th term 12*2=32...............8th term 256*2=512
