1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Vsevolod [243]
3 years ago
15

During a cold winter, the temperature stayed below zero for 10 days (ranging from −20 to −5). The variance of the temperatures o

f the 10 day period _____. a. must be at least zero b. is negative since all the numbers are negative c. Cannot be computed since all the numbers are negative. d. Can be either negative or positive.
Mathematics
1 answer:
Serjik [45]3 years ago
5 0

Answer:

The variance of the temperatures of the 10 day period must be at least zero.

Step-by-step explanation:

The variance is the expectation of the squared deviation of a random variable from its mean. It measures how far a set of numbers are spread out from their average value.

Its unit of measure corresponding to the square of the unit of measure of the variable. In this case, the variance of the temperatures is expressed in (°C)². The variance has a minimum value of 0.

Since the variance is squared, it will always have values greater than zero.

You might be interested in
P and q are points on the line 2y-5x=10
schepotkina [342]

Answer:

2y-5x =10\\when \ x = 0,  \ 2y = 10 => y = 5\\\\\\when \ y = 0, -5x =10 => x =-2\\\\Therefore \ the \  coordinates \  of \ the \  points \ p \ and  \ q\   are  \ (0, 2) \ and  \  (-2, 0)

7 0
3 years ago
Anybody knows the answers to the monomial functions ?
Bond [772]

Step-by-step explanation:

A monomial function is an expression with only one term. ... For example, a polynomial function is the sum of many monomial functions; If there's only one term in a polynomial function, then it is a monomial function [2]. Monomial functions can take many forms: A monomial (a number by itself is a “monomial”).

4 0
3 years ago
Domino's Pizza cuts their Large pizza into 8 equal slices. What is the area of one of the slices if diameter is 16 inches?
Ksju [112]

Answer:

25.1325

Step-by-step explanation:

16/2= radius of 8. pi*r^2 for 8 is 201.06. 201.06/8(slices) = 25.1325

6 0
2 years ago
Read 2 more answers
Find the slope and the y-intercept of the line <br> Y=-5/4x+8
insens350 [35]

Explanation: This is a linear equation because it's written in slope-intercept form or <em>y = mx + b</em> where the multiplier or the coefficient of the x-term represents the slope of the line and the<em> b</em> represents the constant term.

So the slope will be the coefficient of the <em>x-term</em> which means the number that is in front of the <em>x</em> which in this case is -5/4.

The y-intercept is the constant term which is +8

7 0
3 years ago
Read 2 more answers
You make $25000 a year, and you get a 10% raise. Your new salary is $____ The next year you get a 10% cut. Your new salary is $_
gtnhenbr [62]

Firstly, we have to find out what 10% of $25000 is. To do this, multiply $25000 by 0.1 (10% in decimal form): \$25000 \times 0.1=\$2500 . <em>$2500 is the 10% raise.</em>

Next, to find your first new salary, add $25000 and $2500 together: \$25000+\$2500=\$27500 . <u>$27500 is your new salary after the 10% raise.</u>

Next, we need to find 10% of $27500. It's a similar process as to finding 10% of $25000. \$27500 \times 0.1=\$2750 . <em>$2750 is your 10% cut.</em>

Next, since this is a cut, subtract $2750 from $27500. \$27500-\$2750=\$24750 . <u>$24750 is your new salary after the 10% cut.</u>

Next, to find the percentage change, firstly divide $24750 by $25000. \frac{\$24750}{\$25000}=0.99\ \textsf{or}\ 99\% . Now this shows that your current salary is 99% of what you used to make. It is <em>not</em> how much less you make. To find how much less it is, subtract 99% from 100%: 100\%-99\%=1\% . <u>Your current salary is 1% less than what you used to make.</u>

6 0
3 years ago
Other questions:
  • What does the closed circle represent In inequality ?
    15·2 answers
  • Cars are made in a factory for 24 hours every day.
    9·1 answer
  • If 2^2x= 8^x-1 what is the value of x?
    10·2 answers
  • Can someone please give me the answers<br><br> (I’ll be giving brainliest)
    9·1 answer
  • 8x-1&lt;15<br> NO one will help plss someone hellpppp
    7·2 answers
  • The compound interest on Rs. 50000 at 4% per annum for 2 years compound annually is
    13·1 answer
  • Help <br> pls<br> its<br> due<br> tmr<br> pls<br> pls<br> ill give 50 points
    14·2 answers
  • There were 60 multiple-choice questions and he answered 60% of them correctly. How many problems did Garrett get right?
    13·1 answer
  • 20.
    8·1 answer
  • A banner is in the shape of a rectangle.It is 18 feet long and 9 feet wide.What is its perimeter?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!