Answer: rational
Step-by-step explanation:
Definitely rational because 576 and 684 are both natural numbers
1 foot = 12 inches
1in : 2 feet
1in : 24in
Rewrite using the formula for the standard form
The answer is y-4x^2 + 12x + 9
Subtract 40 from both sides
-vp+40-40<95-40
Simplify
-vp<55
Multiply both sides by -1 (reverse the inequality)
(-vp) (-1) > 55 (-1)
Simplify
vp> -55
Divide both sides by v
vp ÷ v > -55 <span>÷ v
</span>
Simplify
p> -55 <span>÷ v </span>
W= width
l= length= 2w-3
Area= length * width
A= lw
substitute l=2w-3 for l
54= (2w-3)(w)
54= 2w^2 - 3w
subtract 54 from both sides
0= 2w^2 - 3w - 54
factor the polynomial
0= (2w + 9)(w - 6)
Set each set of parentheses equal
to 0 and solve for width.
0=2w+9
-9=2w
-4.5= w NEGATIVE VALUE
0=w-6
6 cm=w
-4.5 is not the answer because it has a negative value. You cannot have a negative side of a photograph. So substitute 6 in to find length.
length= 2w-3
l= 2(6)-3
l= 12-3
l= 9 cm
CHECK:
w= 6cm
l= 9cm
Area= length * width
54= 6*9
54= 54
ANSWER: width= 6cm; length= 9cm
Hope this helps! :)
