sebuah gelas berbentuk tabung dengan diameter alasnya 8 cm, tinggi 8 cm, dan ketebalan sisinya 1 cm, jika gelas tersebut diisi air sedemikian rupa sehingga ketinggian air mencapai 3 cm dari dasar gelas, maka volume bagian yang tidak terisi air adalah​

Find the solution of this system of equation -7x+y=-20 9x-3y=36

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Match the scale and the actual area to the area of the corresponding scale drawing. scale: 1 inch to 4 feet actual area: 128 square feet scale: 1 inch to 7 feet actual area: 147 square feet scale: 1 inch to 8 feet actual area: 256 square feet scale: 1 inch to 5 feet actual area: 225 square feet area of scale drawing scale and actual area scale drawing area: 3 square inches arrowright scale drawing area: 8 square inches arrowright scale drawing area: 4 square inches arrowright scale drawing area: 9 square inches arrowright