Separate the 1st 2 terms from the 3rd term:
y = x^2 - 8x + 7
Next, take half of the coefficient of x (that is, half of -8).
In this case that'd come out to -4.
Square this -4 and add the result (16) to x^2 - 8x: x^2 - 8x + 16; subtract -16 from 7:
x^2 - 8x + 16 7 - 16
Write the trinomial as
a perfect square:
(x-4)^2 -9
The answer is (x-4)^2 - 9.
This approach is very useful. Note that the vertex of the parabola represented by the given polynomiql is (4,-9).
If you add all three interior angle measures together in a triangle it will always equal 180°.. To find a third angle you will subtract the sum of the two given angles from 180°.
Answer:
d
Step-by-step explanation:
- area<em>=</em><em> </em>πr²
- radius =4
- area=4×4×22÷7
- =5O.286
- closest to d
Step-by-step explanation:
hope it helped you:)
have a nice day!
To find the reference angle for 144 you subtract 144 from 180 and that how you get your answer
180-144= 36*
