Answer:
Assuming that the last four numbers are answer choices, your answer would be 11
Step-by-step explanation:
9/11 rounds up to 1, 1 + 18 = 19
3/8 rounds down, so you only have 8 for that one
19 - 8 = 11
Answer: x = 45
Step-by-step explanation:
Quadrilaterals inscribed in a circle have all four vertices on the circle.
A unique property of these types of quadrilaterals is their angle measures: Opposite angles of inscribed quadrilaterals will always add up to 180 (they are supplementary angles).
As such, the inscribed quadrilateral ABCD has opposite angles at AC and BD. Because the quadrilateral is inscribed, this means that the angles A + C and the angles B + D will equal 180 degrees. We can represent the angles measures for B and D in an equation where B + D = 180:

When x = 45, the angle B is 40 degrees and the angle D is 140 degrees.
Answer:
the square root of:
30: 5.477225575
12: 3.464101615
36: 6 <-- explanation of square root: any number that when multiplied by itself equals your wanted number (in this case 36) will be the square root of your wanted number.
Answer:
-2x²-xy+y²
Step-by-step explanation:
-2hrhehjrjeierhhrhrirhfhrkwk