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
spin [16.1K]
3 years ago
12

What is negative twenty-five plus twenty-five

Mathematics
2 answers:
SVEN [57.7K]3 years ago
6 0

Negative and a positive makes a negative.


So, -25 + 25 = 0

statuscvo [17]3 years ago
6 0
-25+25 is 0...... a negative plus a positive equals a negative hope this helped!
You might be interested in
PLZ HELP!!!!!!!!!!!!!!!!!!!! WILL MARK
mamaluj [8]
The answer is number 3.
7 0
3 years ago
The brand manager for a brand toothpaste must plan a campaign designed to increase brand recognition. He wants to first determin
bulgar [2K]

We need to find out how many adults must the brand manager survey in order to be 90% confident that his estimate is within five percentage points of the true population percentage.

From the given data we know that our confidence level is 90%. From Standard Normal Table we know that the critical level at 90% confidence level is 1.645. In other words, Z_{Critical}=1.645.

We also know that E=5% or E=0.05

Also, since, \hat{p} is not given, we will assume that \hat{p}=0.5. This is because, the formula that we use will have \hat{p}(1-\hat{p}) in the expression and that will be maximum only when \hat{p}=0.5. (For any other value of \hat{p}, we will get a value less than 0.25. For example if, \hat{p} is 0.4, then 1-\hat{p}=0.6 and thus, \hat{p}(1-\hat{p})=0.24.).

We will now use the formula

n=(\frac{Z_{Critical}}{E})^2\hat{p}(1-\hat{p})

We will now substitute all the data that we have and we will get

n=(\frac{1.645}{0.05})^2\times0.5(1-0.5)

n=(32.9)^2\times0.25

n=270.6025

which can approximated to n=271.

So, the brand manager needs a sample size of 271

3 0
3 years ago
Three students failed their last test. If 12% of the class failed, how many students are in the class?
stellarik [79]

Answer:

There are 25 students in the class.

Step-by-step explanation:

Let x be the number of students in the class

12% failed and the number of students is 3

x*12% = 3

x*.12 = 3

Divide each side by .12

x * .12 /.12 = 3/.12

x =25

There are 25 students in the class

3 0
3 years ago
Read 2 more answers
The measure of Zo is 150°. What is the value of mzo+mZc+mze? 61
abruzzese [7]
The correct answer is zm ( o + c + e) I hope this helps
6 0
3 years ago
Write 1.26% as a <br> precent and fraction
Gre4nikov [31]

Answer:

126%

Step-by-step explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • (Will give brainliest) Is my answer correct?? If not please correct me
    11·1 answer
  • Mike mowed the lawn for 1 1/2 hours. He charged $12. How much did he charge per hour?
    11·1 answer
  • Need help with left side
    11·1 answer
  • Write an equation in point-slope form of the line having the given slope that contains the given point. then graph the line
    11·1 answer
  • HELP OMG I DONT KNOW IF I DID THE ANGLES AND SIDES RIGHT EITHER
    12·1 answer
  • PLEASE HELP: Find the measure of each angle in the isosceles
    14·1 answer
  • THIS I SUPPOSED TO BE EASY BUT I CANT GET IT GIVING BRAINLETS
    11·1 answer
  • A gumball machine contains 23 green gumballs, 52 red gumballs, 34 blue gumballs, 61 yellow gumballs,
    13·2 answers
  • Karen is knitting quilts for her family and friends as holiday gifts. As she knits the quilts she becomes more proficient each w
    11·1 answer
  • Solve the systems of equations using substitution. 2x+3y=-8 ,x=4y+7
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!