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Zanzabum
3 years ago
7

Can somebody help me

Mathematics
1 answer:
qaws [65]3 years ago
8 0
Okay so for the #1 it says that it take 1/2 (half) a day to paint 1/4 of your bedroom and we want to know how many days it would take to paint all of the bedroom, so 4/4 of the bedroom.
We can say that
1/2(number of day) = 1/4(how much you painted)
to paint all of your room you would have to have painted 4/4 of your room
to get to 4/4 i multiplied 1/4 by 4
you do the same thing to 1/2 so 1/2•4=2
So it would take 2 days to paint all (4/4) of your bed room

I dont if im clear but just think about it
If you take half a day to pain 1/4 of your room, in one day you would’ve painted 2/4 of your room, so in one day you paint 2/4 of your room. And in 2 days you paint 4/4 of your room
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Evaluate the function at the given point. x=-1
Ymorist [56]

Answer:

To evaluate a function, substitute the input (the given number or expression) for the function's variable (place holder, x). Replace the x with the number or expression. Given the function f (x) = 3x - 5, find f (4). Solution: Substitute 4 into the function in place of x.

Step-by-step explanation:

8 0
3 years ago
What is the value of x? Enter your answer in the box. x =
11111nata11111 [884]

Answer:

<h2><u><em>55°</em></u></h2>

Step-by-step explanation:

the sum of the interior angles of a triangles is 180°

so

180 = 75 + 50 + x

x = 180 - 75 - 50

x = 55°

-----------------------

check

55 + 75 + 50 = 180°

the answer is good

7 0
2 years ago
Describe the difference between the value of x in a binomial distribution and in a geometric distribution.
IceJOKER [234]

Answer:

A. In a binomial distribution, the value ofx represents the number of successes in n trials, while in a geometric distribution, the value ofx represents the first trial that results in a success.

Step-by-step explanation:

Previous concepts

The binomial distribution is a "DISCRETE probability distribution that summarizes the probability that a value will take one of two independent values under a given set of parameters. The assumptions for the binomial distribution are that there is only one outcome for each trial, each trial has the same probability of success, and each trial is mutually exclusive, or independent of each other".

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

P(X)=(nCx)(p)^x (1-p)^{n-x}  

The geometric distribution represents "the number of failures before you get a success in a series of Bernoulli trials. This discrete probability distribution is represented by the probability density function:"

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

The most important difference is that in the binomial distribution, the value of x represents the successes in n trials.

And by the other hand in the geometric distribution, x represents the number of failures before you get a success in a series of Bernoulli trials.

So then the best answer for this case is:

A. In a binomial distribution, the value of x represents the number of successes in n trials, while in a geometric distribution, the value ofx represents the first trial that results in a success.

7 0
3 years ago
Write a two-digit number that has 5 tens and three less ones than tens
AleksandrR [38]

It is 57  

Because 5 tens becomes 50 and 3 ones less than ten becomes 7 so the answer is 57

Hope that I could help you

7 0
3 years ago
Read 2 more answers
I need help with a problem
IgorC [24]
Sure ill help you :)
6 0
3 years ago
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