Answer:

Step-by-step explanation:
We know that,

where,
r = radius,
θ = central angle in radian.
Given,
diameter = 6 m, so radius = 3 m.

Putting the values,



Answer:
B
Step-by-step explanation:
Simplify the equations into standard form
(2x^2+x+3) + (x^2+3x+2)
Then add
3x^2+4x+5
Answer:
The description for the given question is described in the explanation section below.
Step-by-step explanation:
The given values are:
Number of non-pierced samples = 352
Total number of samples = 1000
(1)...
Now,


On putting the values in the above formula, we get

%
(2)...
Expected numbers of unpierced females are = 64
Answer:
180
Step-by-step explanation:
Answer:
x = 574 and x = - 
Step-by-step explanation:
(1)
0.25x = 143.5 ( isolate x by dividing both sides by 0.25 )
x = 574
(2)
- 4x +
= 3
( subtract
from both sides )
- 4x = 3 ( divide both sides by - 4 )
x = - 