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Mandarinka [93]
2 years ago
15

A trade magazine routinely checks the​ drive-through service times of​ fast-food restaurants. 95​% confidence interval that resu

lts from examining 609 customers in one​ fast-food chain's​ drive-through has a lower bound of 160.8 seconds and an upper bound of 160.8 seconds. What does this​ mean?
Mathematics
1 answer:
Anastaziya [24]2 years ago
8 0

Answer:

z= 1.70 Since the test statistic is less than the critical​ value, we can conclude that the average length of an online video is not more than 8 minutes

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WILL MARK BRAINLIEST
ValentinkaMS [17]

Answer:

The answer to your question is:

x = 13

x + 10 = 23

5x - 42 = 23

Step-by-step explanation:

Data

angle 1 = x + 10

angle 2 = 5x - 42

They are vertical angles so, they measure the same.

                     x + 10 = 5x -42

                    x - 5x = -42 - 10

                       - 4x = -52

                           x = -52/-4

                           x = 13

angle 1 = x + 10 = 13 + 10 = 23

angle 2 = 5x - 42 = 5(13) -42 =  65 -42 = 23

8 0
3 years ago
Serious answers only
slavikrds [6]

Answer:

UR ANSWER IS IN THE ABOVE ATTACHMENT ☝️

6 0
3 years ago
A coat that originally sold for $369.00 is on sale at a 40% discount? How much will you pay for the coat?
Triss [41]
The coat will cost $221.40. If you move a decimal two spaces to the left from 40% (.40) and multiply it by $369.00, you'll get $147.60. You then subtract $147.60 from $369.00 and get $221.40, the final price of the coat.

5 0
3 years ago
Read 2 more answers
Please help giving brainlest and points!!:) thank you!!
Nadya [2.5K]

Step-by-step explanation:

snail will move .2 centimeters in 2 seconds

snail will take 25 seconds to move 2.5 centimeters

3 0
3 years ago
Suppose the numbers A and B are directly proportional. Given that A = 6 when B = 14, what is the value of B if A = 9?
Mrac [35]

Answer:

21

Step-by-step explanation:

Old A: 6    New A: 9

Multiply 6 by 1.5 to get 9.

Therefore multiply 14 by 1.5 as well, which gives you 21.

7 0
3 years ago
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