MATHEMATICS MIDDLE SCHOOL

What is standard deviation?

Answers

Answer 1
Answer: Hey there, standard deviation it's like a measure of numbers that's on a chart, as the numbers increase the higher the line increases. Here is an example.
Answer 2
Answer:  quantity calculated to indicate the extent of deviation for a group as a whole.

Related Questions

5. A rectangular pool ha a length that is 13 meters longer than its width. perimeter is74 meters. What is the width Its of this pool?
The florida panther has an average height of 30 inches. It is 20 inches taller than the northern mockingbird. Write and solve an equation to find the average height of the northern mockingbird.
What is the length of Line BC?
Solve this system of equations: 2x+y=11 y=x-1Please explain how you got it and try to explain your steps!
How do I solve this

Which statement correctly compares 8/15 and 5/8 A. 8/15 > 5/8 B. 8/15 < 5/8 C. 8/15 = 5/8

Answers

The one is right is B. because 5/8 is bigger than 8/15.
we can find a common denominator
8/15 becomes 64/120
5/8 becomes 75/120
from this we can see that 5/8 is larger so the answer is B

Find the sum of the arithmetic sequence. 3, 5, 7, 9, ..., 21

Answers

The answer is:

120

Given the arithmetic sequence

3, 5, 7, 9, ..., 21

The first term a = 3 & a common difference d = 5 - 3 = 7 - 5 = ... = 2

If there are n number of terms in the above A.P. then last term l = 21 will be the nth term given as:

l = a + (n - 1)d

21 = 3 +(n − 1)2

n = 10

Hence the sum of given arithmetic progression (A. P.) up to 10 terms is given general formula.

Sn = n/2(a + l)

S10 = 10/2(3 + 21)

= 120

Simply this expression (-0.25x- 3) - (1.5x +1.4)

Answers

1.75x-4.4

Expression:

  • An expression, often known as a mathematical expression, is a finite collection of symbols that are well-formed in accordance with context-dependent principles.

Simplification of expressions:

  • A mathematical expression is simplified when it is expressed in the simplest way possible.
  • The expression is usually reduced to its simplest form by using fundamental features of numbers, exponents, algebraic principles, etc. to eliminate any repetitions or redundancies.

Solution -

Given expression -(-0.25x-3)-(1.5x+1.4).

To find - Simplify the expression.

Since,

(-0.25x-3)-(1.5x+1.4)\n-0.25x-3-1.5x+1.4\n= 1.75x-4.4

Therefore, after simplification the expression is 1.75x-4.4.

Know more about expressions here:

brainly.com/question/723406

#SPJ2
SOLUTION:

= ( - 0.25x - 3 ) - ( 1.5x + 1.4 )

= - 0.25x - 3 - 1.5x - 1.4

= - 1.75x - 4.4

What do I do for this one

Answers

Answer:

substitute x=1/2 in the equation then it will be

8 + 2( ( 1)/(2) ) \n = 9

Answer:

answer, I think, is 9. I hope you understand

Simplify 14 + 13 − (12 + 11). A) 0 B) 1 C) 4 D) 10

Answers

C. 4
14 + 13 - (23)
27 - 23
4
The answer is C) 4
Explanation: Use order of operations (PEMDAS)
Add what’s in the parenthesis (12+11) = 23
Then add 14+13=27
27 — 23 = 4

What is the correct solution to this problem?A number divided by 5 is 3 more than –6.

What is the number?

A.
–45

B.
–30

C.
–15

D.
–5

Answers

x-\ number\n\n(x)/(5)=-6+3\n\n(x)/(5)=-3\ \ \ | multiply\ by\ 5\n\nx=-15\n\nNumber\ is\ -15
Other Questions
1 2/15÷1/5 ..................................................
Simplify x0y-3/x2y-1
Fourteen less than five times number is three times a number. Define a variable, write an equation, and solve to find the number. PLEASE SOLVE! I NEED IT 2 MIN FROM NOW!
Evaluate the expression 5x-2y when x=4, y=10