Answer:
-5x^2-2x
Step-by-step explanation:
When distributing, you multiply the term outside the brackets to all the terms in brackets.
If the term outside the bracket is negative, then when distributing/opening the brackets, the signs of the terms changes.
So in this prob. -x would multiply to both +5x and +2
-x*5x+-x*2
∴-5x^2-2x
Given:
In the given cone,
Radius of the cone = 7.2 m
Slant height of the cone = 17 m
To find:
The surface area of the cone.
Solution:
The surface area of a cone is:
Where, r is the radius of the cone and l is the slant height of the cone.
Putting 
in the above formula, we get
Therefore, the surface area of the given cone is 547.11 square m.
Answer:
<h2>1.08*(0.82y)</h2>
Step-by-step explanation:
Let us see...
y is the price.
y
Then, 18% off. This is:
y - (y*0.18) = 0.82*y
Then, we add 8%, so now it's 1.08% of this expression:
<h3>1.08*(0.82y)</h3>
