What is the quadratic regression equation that fits these data? X
у
-4
42
-3
30
-2
20
-1
13
0
8
1
13
2.
20
3
32
4
54
O A. y = 0.34x2 + 3.40x+8.60
B. y= 21.94. 1.02%

What is the equation of the graph that represents f(x)=x^4 stretched vertically by 2 and shifted up 3 spaces

What is the fewest number of full weeks briyana would have to work to have enough money? 8 weeks9 weeks 10 weeks11 weeks

Scores on the cognitive scale of the bayley-scales of infant and toddler development range from 1 to 19, with a standard deviation of 3. calculate the margin of error in estimating the true mean cognitive scale score, with 99% confidence, if there are 12 infants and toddlers in a sample.