Answer:
(3x +2)(x +1)
Step-by-step explanation:
A number of different ways are suggested for doing this. One that seems straightforward is this.
For ax^2 +bx +c, look for factors of ac that total b. Here we have ...
ac = 3·2 = 6
b = 5
It is easy to see that the factors we just multiplied to get 6 are ones that total 5: 3+2 = 5.
Now, rewrite the "bx" term using this sum.
3x^2 +3x +2x +2
Factor each pair of terms.
3x(x +1) +2(x +1)
And factor out the common factor:
(3x +2)(x +1)
Answer:
y=-3/13x-89/13
Step-by-step explanation:
m=y²-y¹/x²-x¹
m=(-8)-(-5)/5-(-8)
m=-3/13
y-y=m(x-x1)
y-(-8)=-3/13(x-5)
y+8= -3/13x+15/13
-8 -8
y=-3/13x-89/13
Answer:
2/3
Step-by-step explanation:
Given
Model length: 40 cm
Actual length: 60 m
Scale for any model is ratio of model length of object and actual length of object
Therefore scale for problem stated = Model length/Actual length
= 40/60 = 4/6 = 2/3
Hello.
If Speed = Distance ÷ Time then Time = Distance ÷ Speed
The time taken for the first 90 miles is, 90/x
The time taken for the second 90 miles is, 90/1.5x
The time for the complete journey = 90/x + 90/1.5x = 450/3x = 150/x
Have a nice day
