Answer:
x^2 -17x+72
Step-by-step explanation:
(x – 8) (x – 9)
FOIL
first x*x =x^2
outer -9*x = -9x
inner -8*x = -8x
last = -9*-8 = 72
Add them together
x^2 -9x-8x+72
x^2 -17x+72
Hey there!
Use the slope formula.
m= (y2-y1)/(x2-x1)
Plug in the points. (-4,5) and (4,1)
m= (1-5)/(4-(-4)
m= -4/4+4
m=-4/8
m=-1/2
To find the y-intercept, first plug it into the the point slope. You just need one set of points for this, I will use (4,1)
y-y1=m(x-x1)
y-1= -1/2(x-4)
y-1=-1/2x+2
Add 1 to the other side.
y= -1/2x+3
The 3 is your y-intercept. It is in slope intercept form now. (y=mx+b) The b is the y-intercept.
The equation of the line is usually represented by the slope intercept form, which you already have: y=-1/2x+3.
I hope this helps!
~kaikers
Answer:
A = 58 degrees
b = 51.9
c = 48.5
Step-by-step explanation:
To find A we simply just need to remember that all triangles add up to 180 degrees and we are already given two angles of the triangle so....
![57 + 65=122](https://tex.z-dn.net/?f=57%20%2B%2065%3D122)
![122+58=180](https://tex.z-dn.net/?f=122%2B58%3D180)
![A=58](https://tex.z-dn.net/?f=A%3D58)
To find sides b and c we use the law of sines since we now know the angle of each side.
![a=48](https://tex.z-dn.net/?f=a%3D48)
![b=48\times\frac{sin65}{sin57} =51.87](https://tex.z-dn.net/?f=b%3D48%5Ctimes%5Cfrac%7Bsin65%7D%7Bsin57%7D%20%3D51.87)
![51.87](https://tex.z-dn.net/?f=51.87)
![7>5](https://tex.z-dn.net/?f=7%3E5)
![51.9](https://tex.z-dn.net/?f=51.9)
![b=51.9](https://tex.z-dn.net/?f=b%3D51.9)
![c=48\times\frac{sin58}{sin57} =48.54](https://tex.z-dn.net/?f=c%3D48%5Ctimes%5Cfrac%7Bsin58%7D%7Bsin57%7D%20%3D48.54)
![48.54](https://tex.z-dn.net/?f=48.54)
![4](https://tex.z-dn.net/?f=4%3C5)
![c=48.5](https://tex.z-dn.net/?f=c%3D48.5)
Hope this helps.
y=-1x+4
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hope it helps
sorry I had no idea how to explain
Answer:
30 <em>pages per hour</em>
Step-by-step explanation:
6 <em>pages per </em>1/5 <em>hour </em>
6 <em>x 5 = 30</em>
<em>1/5= </em><em>one whole would be five parts</em>
<em></em>