Find the area of the shaded portions. Round answers to the tenths place if necessary.

Please help me, people!!

12.56 square cm

Step-by-step explanation:

Radius of bigger semicircle R= 4 cm

Radius of one smaller semicircle r = 2 cm

Area of shaded portion = Area of bigger semicircle - 2 times area of one smaller semicircle.

25.2

step-by-step explanation:

2+4x6-8/10= 25.2

find the magnitude of the trig term  

csc

(

x

)

−

1

by taking the absolute value of the coefficient.

1

find the lower bound of the range.

tap for more

y

=

−

2

find the upper bound of the range.

tap for more

y

=

0

the range is  

y

≤

−

2

or  

y

≥

0

.

(

−

∞

,

−

2

]

∪

[

0

,

∞

)

{

y

|

y

≤

−

2

,

y

≥

0

}

step-by-step explanation: