Step-by-step explanation:
E
working ;
(3x+2)^2
*Apply Perfect Square Formula : (a+b) =a^2+2ab+b^2
a = 3x,b = 2
(3x)^2 + 3x.2+2^2
finally Answer is:
= 9x^2 + 12x +4
Answer:
63 kilometers per hour for train A and 83 kilometers for train B
Step-by-step explanation:
Same beginning
- Train A: 3 hours to North
- Train B: 2 hours and 15 minutes to South
but train B <em>2</em><em>0</em><em> </em><em>kilometers </em><em>per hour </em><em>faster</em>
15 minutes from 20 kilometers per hours are 5 kilometers
So, train B is 45 kilometers travel more far than train B.
= 360 kilometers - 45 kilometers
= 315 kilometers ÷ 5 hours
= 63 kilometers per hours
Hope it's right><
The form for that type of equation is y=|x-h|+k
H is the horizontal movement, k is the vertical.
So for your equation, y=|x-(-7)|+0
Final answer:
Move to the left 7 and up 0.
Hope I helped :)
Answer:
y = 5x - 2
Step-by-step explanation:
(-1,3) (1,-7)
Slope (m) = (-7-3)/(1+1) = -10/2 = -5
(-1,3)
y-y = m(x-x) = y-3 = -5(x - -1) = y-3= -5(x+1) =
y-3 = 5x-5
y = 5x - 5 + 3
y = 5x - 2
You should show a pic of the diagram
