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saul85 [17]
2 years ago
7

did americans work less than 40 hours a week on average in 1984? in 1984, the gss included questions about the number of hours t

hat the respondent worked per week. the average number of hours worked per week was 36.63 hours with a standard deviation of 13.23 hours. a sample of 34 respondents was questioned. find the test statistic.
Mathematics
1 answer:
Aliun [14]2 years ago
5 0

Answer:

878 gas

Step-by-step explanation:

89=5=7=9

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2x+3=5 and 3y+7=6, what is x+y?
WITCHER [35]

Answer:

x=1      y=14    they both equal 15

Step-by-step explanation:

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7 0
3 years ago
Read 2 more answers
Angles A and B are complementary. If sin A = 4x + 10 and cos B = 2x + 16, what is the value of x? (1 point) 3 4 13 22
olga_2 [115]

Answer: 3

Step-by-step explanation:

The sine of an angle is equal to the cosine of its complement, so

4x+10=2x+16\\\\2x+10=16\\\\2x=6\\ \\ x=3

5 0
2 years ago
The 25th percentile for waiting time in a doctor's office is 19 minutes. the 75th percentile is 31 minutes. the interquartile ra
Gennadij [26K]
Wheres the rest of the question? 
6 0
4 years ago
Yall please help!!!!!! THANK YOUUU SO MUCHHH!!! Kinda lostttt
Georgia [21]

Answer:

Should be C

Step-by-step explanation:

Only the same power number can be use to add or subtract :)

But why is A, B and C same kinda stuff?

3 0
2 years ago
Two trains leave towns 474 kilometers apart at the same time and travel toward each other. One train travels13 km/m faster than
guajiro [1.7K]

Answer:

112 km/h

125 km/hr

Step-by-step explanation:

Distance = time * speed

Distance  = distance train 1 + distance train 2

474 = 2(s) + 2(s + 13)

Distribute

474 = 2s + 2s + 26

Combine like terms

474 = 4s + 26

Subtract 26 from both sides

448 = 4s

Divide both sides by 4

112 = s

s = 112 km/h

s + 13 = 125 km/hr

3 0
3 years ago
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