I think you're all right on the question expect for b because it's 6/8 and then simplify that I guess.
Answer:
It is irrational, & cannot be written as a fraction.
Step-by-step explanation:
will give you a very odd number when plugged into the calculator.
1.414213562
With our knowledge of rational vs. irrational numbers, we know that means has to be irrational because it is not a whole number, not an integer, & cannot be condensed into a fraction.
Any time you see a number that isn't a perfect square in a square root, it might be best to guess it is irrational.
Always plug it into a calculator (if possible) to check!
Hope this helps. :)
Answer:
-21-24/x
Step-by-step explanation:
f(x) is a function on his own which is f(x)=7x+8
we multiple it with another function which is g(x)=-1/x
that gives us (g*f)=-7-8/x
then multiple it by 3 we have -21-24x
Perimeter of a rectangle = 2(l+w)
Length = 4-7(3x+4y)
=4-21x-28y
Width = 3x(-2y)
=-6xy
Perimeter
=2(4-21x-28y-6xy)
Answer = 8-42x-56y-12xy
Answer: 18/40 and 27/60
Step-by-step explanation:
Multiply the numerator and denominator by whatever number it needs to be multiplied by
9*2 to get 18
20*2 to get 40
9*3 to get 27
20*3 to get 60
