Answer:
-121
Step-by-step explanation:
-11² = -1 × 11² = -1 × 121 = -121
Area of a circle:
(pi)r^2
(pi)r^2 = (pi) 81
r^2 = 81
r = 9
Perimeter of a circle:
2(pi)r
[2(pi)9]:3 = (18pi):3 = 6pi [the two small arcs]
9 = 2.87pi
2.87pi x 4 = 11.5pi
Perimeter of shaded area:
11.5pi + 6pi = 17.5pi
10. LHS = tan2x = 2tanx/(1 - tan^2x)
Now, we can divide the LHS by tanx to yield the numerator as 2.
So, 2tanx/tanx/(1 - tan^2x)/tanx
= 2/(1/tanx - tanx)
= 2/(cotx - tanx)
11. LHS = 1 + sin2x/2 = 1 + sinxcosx
Since we want secx on the bottom, we divide by 1/cosx.
(1 + sinxcosx)/(1/cosx) = (secx + sinx)/secx
Answer:
$7,200.00
Step-by-step explanation:
Set up a proportion: x/240,000 = 3/100
Then cross multiply 240,000 x 3 and divide by 100
Answer:
5
Step-by-step explanation:
You just multiply the indices by the power so 1/6 x 6 = 1 and 5 to the power of 1 is just 5.
