Answer:
1. -4x + 2 > 0
-4x>-2
2x<1
x<0.5
2. 5x > x + 4
4x>4
x>1
3. 3x + 4 < 10
3x<6x<2
4. -10x + 5 -4 > 4x + 3 -1
4x>27
x<1
x<1/7
5. 6x + 3 < 7x - 10
-x<-13
x>13
6. 2x - 4 < 8x + 2
-6x>-6
x<1
7. -3s + 3 > 3
-3s>0
s<0
8. 4s + 2s > 6
6s>6
s>1
9. 6t < 12
t<2
10. 11x < 12
1x<11
11. 3x > 36
x>12
12. 25x < 500
x<20
13. 16r < 8 (10)? U wanted to right
16r < 8*10?
If yes, then
16r < 80
r < 5
14. 6s > 216
s>36
15. 8x < 64
x<8
A squared + b squared = c squared
Answer: $24.2
Step-by-step explanation:
The total cost will be gotten by adding the cost of the sweater and the tax. This will be:
Cost of sweater = $22.95
Tax = 5.5% × $22.95 = 0.055 × $22.95 = $1.26225
Total cost of the sweater = $22.95 + $1.26225 = $24.21225
= $24.2 to nearest cent
Answer:
.
Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true proportions for this case are different so then there is enough evidence to conlcude that the real proportion change.
Step-by-step explanation:
Information provided
represent the number of people who answer abstainers in 1947
represent the number of people who answer abstainer recnetly
sample 1 selected
sample 2 selected
represent the proportion estimated of people who answer abstainers in 1947
represent the proportion estimated of people who answer abstainers recently
represent the pooled estimate of p
z would represent the statistic
represent the p value
significance level given
Hypothesis to test
We want to verify if the proportion of adult Americans who totally abstain from alcohol changed , the system of hypothesis would be:
Null hypothesis:
Alternative hypothesis:
The statistic is given by:
(1)
Where 
Replacing the info given we got:
Since the p value is lower than the significance level we have enough evidence to reject the null hypothesis and we can conclude that the true proportions for this case are different so then there is enough evidence to conlcude that the real proportion change.
