What is the approximate area of the shaded sector in the circle shown below

C. 297

Step-by-step explanation:

The area of the whole circle is

A = πr²,    here r is given as 18, so

A = π(18²)

 A = 324π cm²

The shaded region has an arc length of 105°.  Divide this arc length by 360° to determine how much of a circle this makes up...

105°/360°   now reduce the fraction...

This reduces to   7/24

So the shaded region make us 7/24 of a circle.  The area of this shaded region will 7/24 of the area of the full circle, so we have

A(shaded region) = (7/24)(324π)

             A(shaded region) = 296.8805 cm²  or about 297 cm²

b

step-by-step explanation:

given

- 2 (3x + 12y - 5 - 17x - 16y + 4 )

simplify the parenthesis by collecting like terms

= - 2 (- 14x - 4y - 1) ← distribute the parenthesis by - 2

= 28x + 8y + 2 → b

4th option is correct xy=-10

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