270.1666666666667 this is the anwser
Answer:
![D.~4x^2-20xy+25y^2](https://tex.z-dn.net/?f=D.~4x%5E2-20xy%2B25y%5E2)
Step-by-step explanation:
![4x^2-20xy+25y^2\\\\=(2x)^2-2\cdot 2x \cdot 5y+(5y)^2\\\\=(2x-5y)^2](https://tex.z-dn.net/?f=4x%5E2-20xy%2B25y%5E2%5C%5C%5C%5C%3D%282x%29%5E2-2%5Ccdot%202x%20%5Ccdot%205y%2B%285y%29%5E2%5C%5C%5C%5C%3D%282x-5y%29%5E2)
Answer:
A or D
Step-by-step explanation:
because I dont know what the experiment is just that it was grown differently
Answer:
Solution given:
the angles 2xº and 4yºare complementary
so
2x+4y=90°
dividing both side by 2we get
x+2y=45°
<u>the value of x + 2y</u><u> </u><u>i</u><u>s</u><u> </u><u>4</u><u>5</u><u>°</u><u>.</u>