Answer:
651 is the minimum number of people over age 30 they must include in their sample.
Step-by-step explanation:
We are given the following information:
Confidence level = 90%
Significance level = 10%
Maximum error = 0.09
Variance = 1.96
Formula:
Putting all the values,
651 is the minimum number of people over age 30 they must include in their sample.
Answer:
She paid $29.29
Step-by-step explanation:
Finding 7% of 25
Y is 7% of 23.2
Solving our equation for Y
Y = P% * X
Y = 7% * 23.2
Converting percent to decimal:
p = 7%/100 = 0.07
Y = 0.07 * 23.2=1.624
Y ≅ 1.62
Finding 18% of 25
Y is 18% of 23.2
Solving our equation for Y
Y = P% * X
Y = 18% * 23.2
Converting percent to decimal:
p = 18%/100 = 0.18
Y = 0.18 * 23.2= 4.176
Y≅4.18
Add sales tax and tip to 25
25+4.18+1.62= 30.8
But since my answers were estimated to a different way, I would say it s best to say it is d.29.29
Slope = -2
Use y2-y1/x2-x1
= -1-5/4-1
= -6/3 =
-2
B is your answer plz mark brainlyest
Answer:
Step-by-step explanation:
3(x-4)2=75
3x-12+2=75
3x-10=75
3x=85
28.3
