Javad had a mix of yellow and red jellybeans as shown on the graph. If there are 40 total jellybeans in his bag, how many are
red?
8
7
6
5
Red Jellybeans,
4
3
2
1
0
0
05
1
15
2
25
3
35
Yellow Jellybeans,
A.) 12
B.) 28
C.) 21
D.) 30

Using the quadratic formula find the zeros of the given polynomial -5x^2+3x-11

Having a hard time understanding this question (see attachment).

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.