Having trouble solving this:
2 answers:
Answer:
Step-by-step explanation:
We need to know that 100% is equal to 1 since it is 1 whole of something.
77.8% is less than 1, but it's <em>almost</em> 1 whole.
is too small of a fraction to be <em>almost</em> 1 whole.
has 77 wholes while 77.8% is less than 1.
can't be the answer because 77.8% is, again, less than 1.
I hope this helps!
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Answer:
9
Step-by-step explanation:
A quadratic equation is
The axis of symmetry is 1. This means that some value of
-b/2a =1.
f(0) represent one of the horinzontal roots. Since f(0) equal 0, the constant is 0.
Notice how x=1 is the line of symmetry. This means when x=4 and x=-2, the quadratic is equal. so consider this equation.
=-24
16a+4b= -24
4a-2b=-24
Solve for a by elimination.
2(4a-2b=-24)= 8a-4b=-48
Add both equations.
(16a+4b=-24)+(8a-4b=-48)= 24a=-92
Solve for a.
24a=-92
a=-3
Subsitute to in for b.
16(-3)+4b=-24
-48+4b=-24
4b=24
b=6
This means a=-3
b=6
So b-a is
6+3=9