Answer:
He made $25,000 in total. A 10% is 1 tenth of the total. so multiply 2500 by 10.
Step-by-step explanation:
If the face is a square, then (l*l)
If the face is a triangle, then (b*h)(1/2)
If the face is a rectangle, then (l*w)
If the face is a circle, then (r²)(3.14)
You can then add all these faces up to get the total surface area of the prism.
To solve the problem you must apply the proccedure shown below:
1. You have the following quadratic equation given in the problem:
<span>9x^2+2x-7=0
</span>
2. When you factor it, you obtain:
(9x-7)(x+1)=0
3. Then, you have that the roots of the quadratic equation are:
(9x-7)(x+1)=0
x1=7/9
x2=-1
The answer is 1.869 or 1.87
1/4 (8x+3) ⇒ 1/4×8x = 2x +3