Answer:
The original equation must have been:

Step-by-step explanation:
A quadratic equation is in the form of :

And it is solved in the form of :
and
Now the given equation is :

We can see that here;
a = 7
b = -5
c = -2
So, the original equation must have been:

This would be a percent increase, so the formula would be:
New amount - Original amount / Original amount
Replace the numbers:
440 - 154 / 440
Simplify.
286 / 440
The chance would be 0.65, or 65%.
Answer:
I think the answer will be 16 pieces
Step-by-step explanation:
16 x 3/4 will equal 12
Solution :
1). The cost of the formula is given as :
$ 19,350 + $12 x
2). 95%
for the prediction is :


(rounding off)
3). r = 0.92
Therefore, 
That is 84.64 % of the variability in the moving cost is best explained by the number of moves.
Answer:
62
Step-by-step explanation:
90 - 28
complementary angles equal to 90