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3 years ago

PLEASE HELP THIS IS DUE IN 10 MINUTES PLEASEE HELP

Mathematics

1 answer:

puteri [66]3 years ago

4 0

Answer:

I would pick the second one B

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An elephant needs to drink at least 40 gallons of water each day. A drinking tank contains 4 gallons of water. The elephant has

kirill115 [55]

Answer:

x≥4

Step-by-step explanation

24+4x≥40. Subtract 24 from both sides to get 4x≥16. Divide both sides by 4 to get x≥4.

6 0

3 years ago

Read 2 more answers

A company manufactures electronics components that each month weigh from 29.5 g to 30.5 g inclusive which of the following inequ

mars1129 [50]

Answer:

The second one represents x = 1

The forth one represents x = 1

They both are correct as they both represent x = 1 and greater than 0.5 minus -1 will equal 30-0.5 it is telling you that when we minus 1 from 30 it (x) cannot be greater than 0.5

Step-by-step explanation:

8 0

3 years ago

List all the 3-digit odd numbers that can be created by rearranging these number tiles.<br> 7 3 4

serious [3.7K]

743, 437, 473, 347 are all the 3-digit odd numbers that can be created using those tiles

3 0

3 years ago

I don’t understand this at all

LUCKY_DIMON [66]

Answer:

I think the answer is - 2 + ( 3/4) =2 3/4

Step-by-step explanation:

first of all we can take out the =-1 1/4 and - 1 3/4 email it's not it the correct place also - 2 1/4 because of the 1/4

4 0

3 years ago

Suppose that 45% of students in a college have a smart phone. If you select three students at random, what is the probability th

Sidana [21]

Answer:

$P(X=3)$

And we can use the probability mass function and we got:

$P(X=3)=(3C3)(0.45)^3 (1-0.45)^{3-3}=0.091$

Then the probability that all three have a smart phone is 0.091

Step-by-step explanation:

Let X the random variable of interest "number of students with smartphone", on this case we now that:

$X \sim Binom(n=3, p=0452)$

The probability mass function for the Binomial distribution is given as:

$P(X)=(nCx)(p)^x (1-p)^{n-x}$

Where (nCx) means combinatory and it's given by this formula:

$nCx=\frac{n!}{(n-x)! x!}$

And we want to find this probability:

$P(X=3)$

And we can use the probability mass function and we got:

$P(X=3)=(3C3)(0.45)^3 (1-0.45)^{3-3}=0.091$

Then the probability that all three have a smart phone is 0.091

8 0

3 years ago