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vodka [1.7K]
1 year ago
5

Choose a value for n, and then evaluate n^2.

Mathematics
1 answer:
Sloan [31]1 year ago
6 0

Pick your favorite number and square it.

Squaring a number means you multiply it by itself.

Let's say you picked the number 7

7 squared = 7^2 = 7*7 = 49

Think of a 7 by 7 grid of tiny squares. There would be 49 total little squares to represent the total area. Graph paper might help visualize this.

You might be interested in
A conical-shaped umbrella has a radius of 0.4 m and a height of 0.45 m. Calculate the amount of fabric needed to manufacture thi
bonufazy [111]

Answer:

The correct answer will be "0.756596 m²".

Step-by-step explanation:

The given values are:

The radius of an umbrella,

r = 0.4 m

The height of an umbrella,

h = 0.45 m

As we know,

The lateral surface of an umbrella will be:

⇒  \pi r\sqrt{r^2+h^2}

On substituting the values, we get

⇒  \pi \times 0.4\sqrt{(0.4)^2=(0.45)^2}

⇒  0.756596 \ m^2

So that the amount of fabric needed will be "0.756596 m²".

7 0
3 years ago
In a particular course, it was determined that only 70% of the students attend class on Fridays. From past data it was noted tha
siniylev [52]

Answer: Probability that students who did not attend the class on Fridays given that they passed the course is 0.043.

Step-by-step explanation:

Since we have given that

Probability that students attend class on Fridays = 70% = 0.7

Probability that who went to class on Fridays would pass the course = 95% = 0.95

Probability that who did not go to class on Fridays would passed the course = 10% = 0.10

Let A be the event students passed the course.

Let E be the event that students attend the class on Fridays.

Let F be the event that students who did not attend the class on Fridays.

Here, P(E) = 0.70 and P(F) = 1-0.70 = 0.30

P(A|E) = 0.95,  P(A|F) = 0.10

We need to find the probability that they did not attend on Fridays.

We would use "Bayes theorem":

P(F\mid A)=\dfrac{P(F).P(A\mid F)}{P(E).P(A\mid E)+P(F).P(A\mid F)}\\\\P(F\mid A)=\dfrac{0.30\times 0.10}{0.70\times 0.95+0.30\times 0.10}\\\\P(F\mid A)=\dfrac{0.03}{0.695}=0.043

Hence, probability that students who did not attend the class on Fridays given that they passed the course is 0.043.

8 0
3 years ago
What is sinK?<br><br><br>a. 12/13<br><br>b. 13/12<br><br>c. 5/13<br><br>d. 5/12
ki77a [65]

Answer:

a. 12/13

Step-by-step explanation:

Sin is opposite over hypotenuse.

Opposite side of K is 12 and your hypotenuse is 13

7 0
2 years ago
Read 2 more answers
1. 3.74-2.69 2. 3.7x90 3. 13.65-11.84
never [62]

Answer:

1) 1.05 2)333  3) 1.81

Step-by-step explanation:

Hope this helps :)

7 0
2 years ago
Read 2 more answers
You buy a book of 5 basketball tickets for $62.50. What is the rate of cost per ticket?
34kurt
You must divide 62.5 by 5 to find the rate.
so...
it would be 12.5 dollars per ticket
6 0
3 years ago
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