Answer:
Value of p is 11 and value of q is -11 .
Step-by-step explanation:
x^2 - 121
= x^2 - 11^2
= ( x+11 ) ( x-11 )
Answer:
x = 64
Step-by-step explanation:
2x = 128
x = 64
Answer:
10 m
Step-by-step explanation:
If the area of a square is 50 m2, then the length of each side will be 
m, to get the diagonal length, after dividing the square by joining the points of the diagonal with a line, it forms two right angles with length m each.
the diagonal length represent the hypotenuse side of each of the right angle, knowing the pythagoras theorem:
, so we have:
diagonal = 10 m
Answer:
6 pelicans
Step-by-step explanation:
Let x = number of pelicans
Cody saw 4 times as many seagulls as pelicans:
⇒ number of seagulls = 4x
Total of 30 birds:
⇒ seagulls + pelicans = 30
⇒ 4x + x = 30
⇒ 5x = 30
⇒ x = 6
Therefore, there were 6 pelicans (and 24 seagulls).
Answer:
847.9
Step-by-step explanation:
