<span>Let be A =a3b +9a2b2-4ab5, and B=a3b-3a2b2+ab5,so the difference can be defined as A - B =a3b +9a2b2-4ab5 -(a3b-3a2b2+ab5), when there is negative sign in front of the parathesis, all the inside signs must change: that is as follow: A- B= a3b +9a2b2-4ab5 - a3b + 3a2b2 - ab5= a3b-a3b +9a2b2+3a2b2-4ab5- ab5= 12a2b2 -5ab5, the fist term has 2+2=4, as a degree,the second term has 1 +5 =6, so the true answer : The difference is a binomial with a degree of 6</span>
Answer:
1018.28
Given -
Diameter of cone = 18 cm
To get the radius divide it by 2 -
Radius, r = 18/2 = 9
height, h = 12 cm
To find -
Volume of cone.
Solution -
Volume = 1/3 hπr²
→ V = 1/3 18 × 22/7 × 9 × 9
→ V = 7128/7
→ V = 1018.28
Therefore, the volume of the cone is 1018.28.
Answer:
1/2 or maybe 2
Step-by-step explanation:
I'm not very good at this so I hope it's right.
Answer:
48 minutes
Step-by-step explanation:
First, we divide 1.6 by 2 to see how much out of the hour we will walk. This equals 0.8. We have walked for 0.8 of an hour. An hour is 60 minutes. 60 minutes multiplied by 0.8 is 48. It takes 48 minutes to walk 1.6 miles at 2mph.
Y=x^2-4x+8 and 4x+y=12 so y=12-4x, insert y in the quadratic to get
12-4x=x^2-4x+8
12=x^2+8
0=x^2-4=(x-2)(x+2)
So the solutions are x=2 and x=-2.
