First set up birds is +3 than 2x the number of birds Rhonda saw
Rhonda's birds = r
Current set of birds = c
c = 2r + 3
Current birds are equal to three more than double the amount of birds rhonda saw
Answer:
Step-by-step explanation:
<h3>Trigonometry ratios:</h3>
Answer:
(0.1753 ; 0.2447)
Step-by-step explanation:
Using the relation :
Confidence interval :
p ± margin of error
p = 0.21
1 - p = 0.79
n = 530
Zcritical at 95% confidence level = 1.96
Margin of Error : Zcritical * sqrt[(p(1-p))/n]
1.96 * sqrt[(0.21(0.79))/530]
1.96 * 0.0176923 = 0.0346769
Margin of Error = 0.0346769
Lower boundary = 0.21 - 0.0347 = 0.1753
Upper boundary = 0.21 + 0.0347 = 0.2447
Confidence interval :
(0.1753 ; 0.2447)
Answer:
87.5% are pennies
Step-by-step explanation:
7/8 = 87.5%
Hope this helps!!
Answer:
B
Step-by-step explanation:
2 units to the right -> -2 in the brackets next to x
4 units down -> -4 as a constant at the end of the equation