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2 years ago

A restaurant records the number of tables served each night, and the results have the values: minimum = 3, lower

Mathematics

2 answers:

natulia [17]2 years ago

6 0

Answer: A. The first one

Step-by-step explanation:

Triss [41]2 years ago

3 0

I got an 100%

Please Give me Brainliest

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A car takes 4 hours to reach a destination traveling at a speed of 63 km/h. How long will it take to cover the same distance if

Gre4nikov [31]

Answer:

It will take 4.5hrs to cover the same distance

The constant of variation,k=252

Step by step explanation

Given that,

$speed = \frac{distance}{time}$

From the question

Time=4hr

Speed=63km

By substitution we obtain,

$63= \frac{distance}{4}$

Cross multiplying we get,

$distance=63 \times 4$

$distance=252km$

Now,

speed=56km

Distance Covered=252km

By substitution:

We obtain,

$56= \frac{252}{time}$

Cross multiply

$56\times time=252$

Divide through by 56

$time= \frac{252}{56}$

$time=4.5hrs$

From the formula,

$speed= \frac{distance}{time}$

Which means that, speed and time varies inversely.

$speed\propto \frac{1}{time}$

Let k be variation constant

This implies that

$speed = k \times \frac{1}{time}$

$k=speed \times{time}$

Taken,

Time=4hrs

speed=56km

$k=56\times4$

$k=252$

4 0

2 years ago

In the past few years, outsourcing overseas has become more frequently used than ever before by U.S. companies. However, outsour

Sliva [168]

Answer:

P(X=5)=0.1032

Step-by-step explanation:

This variable can be modeled by a binomial distribution, with parameters n=15 (sample size) and p=0.2 (the individual probability that the company use a consultant).

The probability that k companies that outsource overseas use a consultant can be written as:

$P(x=k) = \dbinom{n}{k} p^{k}(1-p)^{n-k}\\\\\\P(x=k) = \dbinom{15}{k} 0.2^{k} 0.8^{15-k}\\\\\\$

Then, the probability that exactly five companies that outsource overseas use a consultant is:

$P(x=5) = \dbinom{15}{5} p^{5}(1-p)^{10}=3003*0.0003*0.1074=0.1032\\\\\\$

4 0

2 years ago

Answer please........

Likurg_2 [28]

you have to show the graph

4 0

3 years ago

This is a tricky one

IgorLugansk [536]

X = 12 , just solved it right now :)

3 0

3 years ago

Break apart and distribute to solve 72÷8<br> 72÷8=(40÷8)+(32÷8)<br> 9=5+4<br> 9=9

ololo11 [35]

You got it right because you solved it correctly

8 0

3 years ago

Read 2 more answers