Answer:
The area is 256
Step-by-step explanation:
This is quick to see with square root of 81 being 9 and the middle sign being a minus. (a) 2x-9 is the answer
Step-by-step explanation:
Change mixed numbers into a whole number by multiplying the denominator by a whole number, then add the numerator to it and keep the same denominator.
3*1+2=5/3
so, 1 as a whole number and 2/3 is 5/3 or 5 over 3.
The answer is d)3 because each number gets multiplied by 3 to qual the next number
Answer:
781250
Step-by-step explanation:
Let x = length of fenced side parallel to the side that borders the river
and y = length of each of the other two fenced sides
Then, x + 2y = 2500
<=> x = 2500- 2y
Area = xy = y(2500-2y)
= -
+ 2500y
The graph of the area function is a parabola opening downward.
The maximum area occurs when y = -2500/[2(-2)] = 625
x = 2500-2y = 1250
The maximum area that can be enclosed = xy = 1250*625 = 781250