Answer:
Step-by-step explanation:
1) Let width = x
One side of the rectangle is covered by river. So only, 3 sides to be covered.
length = 100 - ( x + x) = 100 - 2x
Area of rectangle = length *width
= (100 - 2x)*x
f(x) = 100x - 2x^{2}

Answer:
The Answer is 62π or 194.77874452256718078468388976333.
Step-by-step explanation: To find the circumference of a circle, you need to multiply the diameter by π. The equation is 2πr.
Answer:
I will xD
Step-by-step explanation:
Answer:
28.75 cm^3 of space not used
Step-by-step explanation:
The volume of the box is
V = 4.5* 2.5 * 7 =78.75 cm^3
The gift takes up 50 cm^3
Subtract
78.75-50 = 28.75 cm^3
There is 28.75 cm^3 of space not used
Each teacher would get 142 pencils with 6 pencils left over