Afish is swimming 10.2 feet below the surface of the water. it then descends another 12.85 feet. what subtraction expression can be used to find the new position of the fish?

The subtraction expression can be used to find the new position of the fish=-10.2-12.85.

Step-by-step explanation:

Given

A fish swimming 10.2 feet below the surface of the water

fish swimming the distance in water=-10.2 feet

10.2 feet take negative because the fish swimming below the surface of the water.

Then , It descends the  another distance in water=-12.85 feet

12.85 feet take also with negtaive sign because the fish moving in  downward direction.

Now, the  expression can be used to find the new position of the fish

= -10.2 + (-12.85)

The subtraction expression can be used to find the new position of the fish

=-10.2-12.85

By using the rule when positive number is multiplied by negative number  then the answer is negative.

The new position of fish=-23.05 feet.

answer: option a.

step-by-step explanation:

you know that the quadrilateral opqr ( a four sided figure) is inscribed in circle. this means that all its vertices are on the circle.

then, by definition, the opposite angles of the quadrilateral are supplementary, this means that the sum of their measures is 180 degrees.

you can observe in the figure that the angles ∠opq   and the angle ∠orq   are opposite, therefore:

then, can be used to d to calculate the measure of ∠opq