3 years ago

I don't understand this ;-;

Mathematics

2 answers:

oksano4ka [1.4K]3 years ago

8 0

It should take them a total of 3 hours to paint the room together

Stels [109]3 years ago

7 0

Answer:

17 hours

Step-by-step explanation:

As we know altogether means how many in all or in an easier saying the total.The total is 17.Hope that help you!

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3 years ago

Read 2 more answers

What is the minimum number of clients the travel agent should survey? Note that z=1.96 for a 95% confidence interval.

slega [8]

Answer:

121

Step-by-step explanation:

Given data as per the question

Standard deviation = $\sigma$ = 840

Margin of error = E = 150

Confidence level = c = 95%

For 95% confidence, z = 1.96

based on the above information, the minimum number of clients surveyed by the travel agent is

$n = (\frac{z\times \sigma}{E})^2$

$= (\frac{1.96\times 840}{150})^2$

= 120.47

= 121

hence, the 121 number of clients to be surveyed

Therefore we applied the above formula to determine the minimum number of clients

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3 years ago