Answer:
Step-by-step explanation:
The given function is;
This is the same as;
Add and subtract the square of half the coefficient of x.
Observe that the first three terms is a perfect square trinomial.
The vertex form is
The vertex (8,-64)
X = 38
2x is equal to the angle next to the x + 66 angle because ℓ1 ∥ ℓ2 is parallel so:
2x + x + 66 = 180 -- combine like terms
3x + 66 = 180 -- subtract 66 from both sides
3x = 114 -- divide by 3 on both side
x = 38
20% - think of it like this, you have 100 as a full percentage, to help, bring it down to 10. Now, you just have to figure out what 10/5 is, and that’s 2, so now you know you’re looking at intervals of 2, but since your real number is 100, we add a zero to the 2, making it 20, and putting this into a percentage!!
Hope this helps!!
Answer:
To convert degrees to radians, multiply by π180° π 180 ° , since a full circle is 360° or 2π radians. Cancel the common factor of 60 . Factor 60 60 out of 240 240 .
