21/30 as a percent would be 70%.
For simple integer factors as this one has, you want to find two values for the quadratic in the form ax^2+bx+c. Let the two values be j and k. These two values must satisfy two conditions.
jk=ac=10 and j+k=b=11, so j and k must be 1 and 10.
Now replace bx with jx and kx...
2x^2+x+10x+5 now factor 1st and 2nd pair of terms.
x(2x+1)+5(2x+1)
(x+5)(2x+1)
Answer:
Quotient = 3
Step-by-step explanation:
We need to solve the given expression :

It can be done as follows :
As, 
So,

Hence, the required quotient is 3.
Answer:
178
Step-by-step explanation:
The area of the rectangle is 6x25=150.
The area of the two semicircles on the sides is equal to the area of one circle with a radius of 3, so the area is
which is approximately 28.27.
150+28.27=178.27
That would be 35 + 0.20*35 = $42