1. 2x²-3x²-3x+5x+1-2=-x²+2x-1
2.3x²+5x-2x+6-1=3x²+3x+5
3.-7n²-5n²+4n+6n+3+1=-13n²+10n+4
I think these are the answers if not I'm sorry
Answer:
Number of steps = 10,560 steps
Step-by-step explanation:
Number of steps : number of miles = 3168 : 1.5
how many steps will he need to walk 5 miles?
Let number of steps = x
Number of steps : number of miles = x : 5
3168 : 1.5 = x : 5
3168/1.5 = x/5
Cross product
3168 * 5 = 1.5 * x
15,840 = 1.5x
x = 15,840 / 1.5
= 10,560 steps
x = 10,560 steps
Number of steps = 10,560 steps
Step-by-step explanation:
3x-12>2y
Y<1.5x-6 i think this is correct answer
Answer:
![(x+7)^2+(y-2)^2=7^2](https://tex.z-dn.net/?f=%28x%2B7%29%5E2%2B%28y-2%29%5E2%3D7%5E2)
Step-by-step explanation:
Tangent to y-axis means that the side of the circle TOUCHES the y axis.
Since the center is at (-7,2) and it touches the y axis, we can figure out the radius. It goes from (-7,2) to y-axis. Horizontally, the center is 7 units left of y-axis, so that is the radius ----- 7 units
The standard form of a circle is:
![(x-h)^2+(y-k)^2=r^2](https://tex.z-dn.net/?f=%28x-h%29%5E2%2B%28y-k%29%5E2%3Dr%5E2)
Where
(h,k) is the center
r is the radius
Putting the information into the form, we have:
![(x-h)^2+(y-k)^2=r^2\\(x-(-7))^2+(y-(2))^2=7^2\\(x+7)^2+(y-2)^2=7^2](https://tex.z-dn.net/?f=%28x-h%29%5E2%2B%28y-k%29%5E2%3Dr%5E2%5C%5C%28x-%28-7%29%29%5E2%2B%28y-%282%29%29%5E2%3D7%5E2%5C%5C%28x%2B7%29%5E2%2B%28y-2%29%5E2%3D7%5E2)
THis is the standard form.
It is -60 .. you take 40 minus 35 divided by 35 and times it by 100.