Answer:
im not reading all of that
Step-by-step explanation:
Answer:
i think its B.............................
Answer:
x=60.56, x=-82.56
Step-by-step explanation:
Solve using quadratic formula
Formula is
![x=\frac{-b+-\sqrt{b^2-4ac}}{2a}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-b%2B-%5Csqrt%7Bb%5E2-4ac%7D%7D%7B2a%7D)
0.05x^2 + 1.1x = 250
Subtract 250 on both sides
0.05x^2 + 1.1x - 250=0
a= 0.05, b=1.1 , c=-250
Plug in the values in the formula
![x=\frac{-1.1+-\sqrt{(1.1)^2-4(0.05)(-250)}}{2(0.05)}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-1.1%2B-%5Csqrt%7B%281.1%29%5E2-4%280.05%29%28-250%29%7D%7D%7B2%280.05%29%7D)
![x=\frac{-1.1+-7.156116265}{0.1}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-1.1%2B-7.156116265%7D%7B0.1%7D)
Now make two equations , one with + and one with -
then we solve for x
![x=\frac{-1.1+7.156116265}{0.1}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-1.1%2B7.156116265%7D%7B0.1%7D)
x=60.56
![x=\frac{-1.1-7.156116265}{0.1}](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-1.1-7.156116265%7D%7B0.1%7D)
x=-82.56
So the two possible original temperatures would be either -9 or 9.
Answer:
angle b is 30 degrees
Step-by-step explanation:
a right angle is 90 degrees so you can do 90 -60 witch gets you 30 degrees