Please please help me

Q = (9, 4 )

Step-by-step explanation:

Use the midpoint formula and equate to the coordinates of the midpoint.

M = ( ) , ( )

let the coordinates of Q = (x, y ) , R = (- 7, 0 ) , then

= 1 ( multiply both sides by 2 )

x - 7 = 2 ( add 7 to both sides )

x = 9

and

= 2 ( multiply both sides by 2 )

y = 4

Thus Q = (9, 4 )

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

the volume is the product of the area of the base, 3x(3x+4), and the height, 3x-1

step-by-step explanation: