Answer:

Step-by-step explanation:
<u>Step 1: Multiply</u>
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Answer: 
Answer:
A) The model exists: f(x) = -3x^2 +4x -4
Step-by-step explanation:
A quadratic model will always exist for 3 given points, provided they are not on a line. In that case, a linear model is appropriate.
Here, the slope between -1 and 0 is positive, and the slope between 0 and 3 is negative. Thus, we know these points are not collinear, and a model must exist.
The model is most easily found using a quadratic regression tool. Such is shown in the attachment. It tells us that ...
f(x) = -3x^2 +4x -4
Answer:
D. $3,776.28
Step-by-step explanation:
The finance charge should be ...
$3558.71 × 1.75% = $62.28 . . . . . . not $82.28
The new balance should be $20 less than what is shown, so should be ...
$3,776.28
Answer:
20%
Step-by-step explanation:
Question 2. :
8^2 = 64 and 9^2 = 81, therefore the square root of 65 falls between these two values, 8 and 9, 64<65<81
Question 3. :
13^2 = 169 and 14^2 = 196, the correct answer is square root of 175, because 169<175<196
Hope this helps, you only need to know the squared values and square roots.