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2 years ago

Please help me it's due today:(

Mathematics

1 answer:

kvasek [131]2 years ago

4 0

Hey man this is very simple please use photo math or search the answers up thanks man glad I could help in any way

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PLEASE HELP ME!!!!!!!!<br> I WILL MARK YOU BRAINLIEST

AlekseyPX

Answer:

Step-by-step explanation:

Hope this helps :)

3 0

2 years ago

Which of the following choices translates the sentence “the difference of three times a number and 20 is 13”?

evablogger [386]

Answer:

3x - 20 = 13

Step-by-step explanation:

1. The word is signals the equal sign.

The difference of three times a number and 20 = 13

2. The word difference signals subtraction.

3. The phrase a number sigals that the number is unknown, so a variable should be used. In this case, I'll use x.

4. Three times that number = 3x.

The difference = subtraction.

3x-20=13

8 0

3 years ago

Read 2 more answers

the late fee for library books is $2.00 plus 15 cents each day for a book that is late. If Maria's fee for a late book was $3.20

love history [14]

Answer:

Maria's book was 8 days late

Step-by-step explanation:

According to the information given, you can write an equation that states that 15¢ multiply for the number of days that the book was late plus $2 is equal to $3.20:

0.15x+2= 3.20

x= number of days that the book was late

Now, you have to solve for x:

0.15x= 3.20-2

0.15x= 1.20

x= 1.20/0.15

x= 8

The book was 8 days late.

5 0

2 years ago

X= <br> Y=<br> Find the values of X and Y

Art [367]

<h3><u>Answer:</u></h3>

x = 50°
y = 65°

<h3><u>Step-by-step explanation:</u></h3>

<u>We can clearly see that the triangle is an isosceles triangle. This also means that y must equal to 180 - 115. Let's solve.</u>

=> x + y + 180 - 115 = 180
=> x + y + 65 = 180

<u>Since 180 - 115 equals 65, this means that </u><u>y = 65.</u>

=> x + 65 + 65 = 180
=> x + 130 = 180
=> x = 180 - 130
=> x = 50

<h3><u>Conclusion:</u></h3>

<u>Therefore, our answers are:</u>

x = 50°
y = 65°

Hoped this helped.

$-BrainiacUser1357-$

3 0

2 years ago

A tennis player makes a successful first serve 51% of the time. If she serves 9 times, what is the probability that she gets exa

aleksley [76]

Answer:

$P(X=3)$

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

$P(X=3)=(9C3)(0.51)^3 (1-0.51)^{9-3}=0.1542$

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".

Solution to the problem

Let X the random variable of interest, on this case we now that:

$X \sim Binom(n=9, p=0.51)$