MATHEMATICS
MIDDLE SCHOOL

Answer:

The round off to nearest half is 1/2.

What is Round off?Although the term "rounding" is a general one, we typically use the terms "round up" or "round down" to indicate whether the number has gone up or down after being rounded. The supplied number is said to be rounded up when the rounded number is increased, and it is said to be rounded down when the rounded number is dropped.

Given:

The fraction = 5/9.

Now, rounded to the nearest half is 1/2

we know 9 halved value is 4.5 which is much closer to 5.

So, we can write it as 5/10 = 1/2.

Learn more about Round off here:

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Answer: 5/9 rounded to the nearest half is 1/2 because have of 9 is 4.5. 5 is closer to 4.5 than 9. That is why the answer is 1/2.

Hope this helped☺☺

Hope this helped☺☺

MIDDLE SCHOOL

rue or False? The first distribution shown below has a smaller standard deviation than does the second distribution. A) 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22. B) 111, 112, 113, 114, 115, 116, 117, 118, 119, 120, 121, 122

False, the min and max of A are the same distance as the min and max of B from each other, therefore the standard deviation is the same.

MIDDLE SCHOOL

3(-4n - 9) = 21 plc solve

Answer:Explanation:

Answer:

Step-by-step explanation:

First thing you do is divide by 3 from both sides of equation.

Simplify.

Then add by 9 from both sides of equation.

Simplify.

Divide by -4 from both sides of equation.

Simplify, to find the answer.

, which is our answer.

MIDDLE SCHOOL

A new obstacle course is home to several new types of challenging obstacles. One such obstacle is traversing a 15-stair staircase. To make it more challenging, the stairs are not uniformly spaced. Rather, the vertical space between consecutive stairs for the first 10 stairs is 1 1/3 feet and the vertical space for the last 5 stairs is 1 3/4 feet. What is the total vertical distance traveled ascending and descending the entire 15-stair staircase?

Answer:

Step-by-step explanation:

Here, the vertical space between two consecutive stairs in first 10 stairs =

⇒ The total vertical distance for 10 stairs =

Also, The vertical space between two consecutive stairs for last 5 stairs =

⇒ The total vertical distance for 10 stairs =

Thus, The total vertical distance = Total vertical space for the first 10 stairs + Total vertical space for the last 5 stairs

=

=

=

=

MIDDLE SCHOOL

You and your mom enter a drawing with 3 different prizes. A total of 8 people entered the drawing, and prizes are awarded randomly.There are 336 ways to award the prizes.What is the probability that you win first prize and your mom wins second prize?￼ A.￼￼ 8/336

B. 1/8￼￼

C.￼￼ 6/336

D.￼ 1/336

It's actually C. 6/336

Answer:

Step-by-step explanation:

Given: The Number of different prizes = 3

The number of people entered the drawing room = 8

The number of ways to select for 3 prizes, such that you win first prize and your mom wins second prize = You × Mom × Rest of people

The total number of ways to award the prizes = 336

Therefore, the probability that you win first prize and your mom wins second prize=