Answer:
Step-by-step explanation:
This is what I got in the calculator
Answer:
To my best knowledge from what I can see the answer is A.
Step-by-step explanation:
Answer:
234 people
Step-by-step explanation:
1 fish = 3 people
Multiply each side by 78
1*78 = 3 *78
78 fish = 234 people
Answer:
<h2>4.46</h2>
Step-by-step explanation:
The formula of a distance between two points:
We have (-3, 1) and (-1, 5). Substitute:
Let a = arc distance of the sector
let r = radius of the circle
a + 2r = 8
a = (8-2r)
Find the portion of the circle in the sector (arc/circumference)
a/2r •r
Replace a with ( 8-2r)
(8-2r/2•square root • r)
Simply
(8-r/square root •r)
( 4-r) / square root R
Find the area of the sector
(4-r)/square root •r • square root •r ^2
Cancel pi*r
A = (4-r) * r
A = -r^2 + 4r
Max of this quadratic equation occurs at the axis of symmetry; x=-b/(2a)
R=-4/2•(-1)
R= 2 cm
Find the max area
A = -2^2 + 8(2)
A = -4+ 16
A = 12 sq cm max area