Answer:
Step-by-step explanation:
Let x and y are the two positive real numbers
product of two numbers is 21
The sum of the two numbers is f(x) =x+y
Replace y with 21/x
we need to find smallest possible sum , so we take derivative using power rule
when sum is minimum then the derivative is equal to 0
multiply both sides by x^2
Take square root on both sides
Answer:
y=1
x=4
hope this helps!
if you graph these equations, they will intersect at (4,1). They look very short because they are vertical and horizontal.
Step-by-step explanation:
Answer:
Step-by-step explanation:
If N is the midpoint of CD, it means that N bisects the line CD. Hence;
CN + ND = CD .... 1 and;
CN = ND .... 2
Substitute equation 2 into 1;
CN + CN = CD
2CN = CD
Rearrange;
CD = 2CN (proved)
The hypothesis is the midpoint hypothesis and the hypothesis is TRUE
450
you got this! just keep trying
Explanation/Answer:
To convert, we need a common denominator.
So if, say, we multiply the denominator by 2, we must multiply the numerator by 2 as well.
1) 4/5+4/7
4x7/5x7 + 4x5/7x5
28/35+20/35
(Both have common denominators so we can add them)
28 +20/35= 48/35=1 13/35
2) 1/2+11/8
(We already have common denominator in one of the numbers so we only have to convert ONE of the fractions)
1x4/2x4+11/8
4/8+11/8=15/8= 1 7/8
3) 1/5+1/3
1x3/5x3+1x5/3x5
3/15+5/15=8/15
Hope this helped :D
