Answer:
is that the whole question? it looks unfinished to me-
Answer:
-25
Step-by-step explanation:
2a² - 5a + 4, for f(-3)
2(-3)² -5(-3)+4
2*(-27)+15+4
-54+19
= -25
See, when you are traveling, you might get lost. if so, just remember "I need to go between _ and _ miles" estimating and rounding to the nearest number with 0 wiil help.
Answer:
<h2>
w = -8</h2>
Step-by-step explanation:
Given the equation solved by Ernesto expressed as
, the extraneous solution obtained by Ernesto is shown below;
![\sqrt{\dfrac{1}{2}w+8}=-2\\\\square\ both \ sides \ of \ the \ equation\\(\sqrt{\dfrac{1}{2}w+8})^2=(-2)^2\\\\\dfrac{1}{2}w+8 = 4\\\\Subtract \ 8 \ from \ both \ sides\\\\\dfrac{1}{2}w+8 - 8= 4- 8\\\\\dfrac{1}{2}w= -4\\\\multiply \ both \ sides \ by \ 2\\\\\dfrac{1}{2}w*2= -4*2\\\\w = -8](https://tex.z-dn.net/?f=%5Csqrt%7B%5Cdfrac%7B1%7D%7B2%7Dw%2B8%7D%3D-2%5C%5C%5C%5Csquare%5C%20both%20%5C%20sides%20%5C%20of%20%5C%20the%20%5C%20equation%5C%5C%28%5Csqrt%7B%5Cdfrac%7B1%7D%7B2%7Dw%2B8%7D%29%5E2%3D%28-2%29%5E2%5C%5C%5C%5C%5Cdfrac%7B1%7D%7B2%7Dw%2B8%20%3D%204%5C%5C%5C%5CSubtract%20%5C%208%20%5C%20from%20%5C%20both%20%5C%20sides%5C%5C%5C%5C%5Cdfrac%7B1%7D%7B2%7Dw%2B8%20-%208%3D%204-%208%5C%5C%5C%5C%5Cdfrac%7B1%7D%7B2%7Dw%3D%20-4%5C%5C%5C%5Cmultiply%20%5C%20both%20%5C%20sides%20%5C%20by%20%5C%202%5C%5C%5C%5C%5Cdfrac%7B1%7D%7B2%7Dw%2A2%3D%20-4%2A2%5C%5C%5C%5Cw%20%3D%20-8)
Hence, the extraneous solution that Ernesto obtained is w = -8
<span> Slope = 1.000/2.000 = 0.500 x-intercept = 5/-1 = -5.00000<span> y-intercept = 5/2 = 2.50000</span></span>