(393,393,400,458,482,491,496,507,509,511) Which two measures of these data best describes the typical number of books that were returned to the library each week?

Answers

Answer 1
Answer: the mode (number that occurs most often) = 393 since it appears twice in this sequence

the mean (all the numbers added together and divided by the number of numbers in the sequence)= 393 +393 + 400 + 482 + 496 +507 +509 + 511= 3691

the median (when, the numbers are placed in order from lowest to highest, the middle number, or if there is a even amount of numbers, the two middle numbers added together than divided by 2) = 482 + 491 = 973/2 = 486.5

these three terms are all different forms of the average, although once you get to high school you will learn that they may not be very accurate when there is outliers, to which you will learn how to calculate the outliers and how to descaled them form your calculations :)

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Which statement about the ordered pairs (-9, 3) and (2, - 4) is true for the equation6x - y/2 = 14?

(-9, 3) is a solution to the equation.
(2, - 4) is a solution to the equation.
Neither ordered pair is a solution.
Both ordered pairs are solutions.

Answers

Answer:

(2, - 4) is a solution to the equation

Step-by-step explanation:

Substitute the x and y coordinates of the points into the left side of the equation and if equal to the right side then they are a solution.

(- 9, 3 )

6(- 9) - (3)/(2)

= - 54 - 1.5 = - 55.5 ≠ 14 ← not a solution

(2, - 4)

6(2) - (-4)/(2)

= 12 + 2 = 14 ← This is a solution

Thus (2, - 4) is a solution to the equation

What is a rate and a unit rate examples

Answers

Answer:Rates. ... When rates are expressed as a quantity of 1, such as 2 feet per second or 5 miles per hour, they are called unit rates. If you have a multiple-unit rate such as 120 students for every 3 buses, and want to find the single-unit rate, write a ratio equal to the multiple-unit rate with 1 as the second term.


Step-by-step explanation:


What number is a common multiple of 5 and 9

Answers

Commonmultiple is a number which is a multiple of two or more numbers which is commonto two given numbers.
Example5 and 9
5= 0, 10, 15, 20, 25, 30, 35, 40, 45, 50
9= 0, 9, 18, 27, 36, 45, 54, 63, 72, 81
Thecommon multiple or the Least Common Multiple of the numbers 5 and 9 is 45.
TheLCM or the Least Common Multiple of two or more numbers that is common to bothgiven numbers like 5 and 9 which is 45.


45

5 10 15 20 25 30 35 40 45

9 18 27 36 45

Formula of arc length

Answers

The formula is

(theta)/360 · 2(pi)r

theta is the given angle

r is radius of the circle
A formula of an arc length, starting from degrees is θ/360 * 2πr.

Hope this helps!

If you have any questions, please comment below.

If 7.29 ÷ 9 = 0.81, then the quotient of 7.29 ÷ 90 is _________________. Use place value reasoning to explain the placement of the decimal point.

Answers

Answer:

0.081

Step-by-step explanation:

Given that

7.29/9 = 0.81

Then we have ti find 7.29/90

We know that

1/10 =0.1

1/100 = 0.01

So

Here digits are same only 9 is replace by 90.

So we can say that

7.29/90=0.081

As we know that

x)  Z ( y

     P

P is remainder

y is  quotient.

Which ordered pairs are solutions to the equation? y = 3x + 1

A.
(6, 19) and (0, 0)

B.
(6, 18) and (0, 1)

C.
(6, 19) and (0, 1)

D.
(19, 6) and (0, 1)

Answers

If you graph it the line will go through (0,1) an (6,19) so the answer is C.