Answer:

Step-by-step explanation:
<u>Given function:</u>

<u>We can also write it as:</u>

x-intercept is the point where y = 0
Put y = 0 in the above equation
![0=x^2-7\\\\Add \ 7 \ to \ both\ sides\\\\7 = x^2\\\\Take \ sqrt \ on \ both \ sides\\\\\pm \sqrt{7} =x\\\\x = \pm \sqrt{7} \\\\\rule[225]{225}{2}](https://tex.z-dn.net/?f=0%3Dx%5E2-7%5C%5C%5C%5CAdd%20%5C%207%20%5C%20to%20%5C%20both%5C%20sides%5C%5C%5C%5C7%20%3D%20x%5E2%5C%5C%5C%5CTake%20%5C%20sqrt%20%5C%20on%20%5C%20both%20%5C%20sides%5C%5C%5C%5C%5Cpm%20%5Csqrt%7B7%7D%20%3Dx%5C%5C%5C%5Cx%20%3D%20%5Cpm%20%5Csqrt%7B7%7D%20%5C%5C%5C%5C%5Crule%5B225%5D%7B225%7D%7B2%7D)
Answer:
72
Step-by-step explanation:
you just have to multiply 12 by 6 and then you get 72. so its 72 pages
Answer:
x=0
Step-by-step explanation:
120521x=0
x=0/120521=0
Answer:
25 minutes left for reading.
Step-by-step explanation:
(1/3)*(1 hour)= 20 minutes
(1/4)*(1 hour)=15 minutes
Add the two answers: 35 minutes total spent on her phone and brushing her teeth, leaving 25 minutes to read.