1/2 minus 1/6 equals.

Four friends played darts last weekend. The table below shows the number of times that each friend hit the bulls-eye and the tot

Ludmilka [50]

Answer:

Becky

Step-by-step explanation:

Look at it.... i mean 21:35 is the greatest in fraction, decimal and percentage.

8 0

3 years ago

Read 2 more answers

A university has 31,560 students. In a random sample of 180 students, 12 speak three or more languages. Predict the number of st

kodGreya [7K]

<h3>Hello there!</h3>

Here's the information given to us written out:

- 31560 total students

- 12/180 students speak 3 or more

To solve:

To solve this, use the probability from the survey of 180 students to make a reasonable estimate for the 31560 total students.

12/180 students were able to speak 3 or more languages. This proportion, of 12 students : 180 students can be adjusted.

Just like when simplifying fractions, both sides can have an operation (of multiplication or division) done to it and still be equivalent.

In this case, we want to set the side of total students to be equivalent to 31560 to get the estimated number of students that speak 3 or more languages.

To get the number to multiply both sides by:

31560 / 180 = 175 1/3 = 526/3

Now, carry out the operation - multiply both sides by that number.

12/180 = (12 * 526/3) / (180 * 526/3) = 2104 / 31560

So, out of 31560, using the same probability, around 2104 students would speak 3 or more languages.

Hope this helped!

3 0

4 years ago

Which of the following is true about the charge of an electron?

natita [175]

Answer:

It is -1.602 x 10^-19 C, and the smallest unit of charge

Step-by-step explanation:

The charge on an electron is $1.6\times 10^{-19}\ C$ . The charge on electron is negative. The quantization of electric charge is :

q = ne

q is net charge

n is no of electrons

e is the electronic charge which is $-1.6\times 10^{-19}\ C$ . Hence, the correct option is (b).

6 0

3 years ago

This is used for the next few questions: The rating for the new scary movie has a scale of 0 to 10. The average response was tha

boyakko [2]

Answer:

The percentage that of people who gave the movie a rating between 6.8 and 8.8

P(6.8≤X≤8.8) = 83.9≅ 84 percentage

Step-by-step explanation:

Step(i):-

Mean of the Population = 8.3 points

Standard deviation of the Population = 0.5 points

Let 'X' be the random variable in normal distribution

Let X = 6.8

$Z = \frac{x-mean}{S.D} = \frac{6.8-8.3}{0.5} = -3$

Let X = 8.8

$Z = \frac{x-mean}{S.D} = \frac{8.8-8.3}{0.5} = 1$

The probability that of people who gave the movie a rating between 6.8 and 8.8

P(6.8≤X≤8.8) = P(-3≤Z≤1)

= P(Z≤1)- P(Z≤-3)

= 0.5 + A(1) - ( 0.5 -A(-3))

= A(1) + A(3) (∵A(-3)=A(3)

= 0.3413 +0.4986 (∵ From Normal table)

= 0.8399

Conclusion:-

The percentage that of people who gave the movie a rating between 6.8 and 8.8

P(6.8≤X≤8.8) = 83.9≅ 84 percentage

6 0

4 years ago

What is the x-intercept of the graph that is shown below?

Gre4nikov [31]

Look at where the line crosses the X axis.

Here we see it crosses -2

So your answer is A (-2, 0)

3 0

3 years ago