subject
Mathematics, 14.04.2020 21:49 morgans53005

Which expression is equivalent to -21?
A. 9-(-12)
B. 9+(-12)
C. -9+12
D. -9-12

ansver
Answers: 1

Another question on Mathematics

question
Mathematics, 21.06.2019 13:00
An advertisement is on a flyer that has a thickness of 8.2 × 10-5 meters. each measurement below is the thickness of a stack of flyers. drag each measurement to the correct stack.
Answers: 2
question
Mathematics, 21.06.2019 16:30
Kelly is a salesperson at a shoe store, where she must sell a pre-set number of pairs of shoes each month. at the end of each work day the number of pairs of shoes that she has left to sell that month is given by the equation s=300-15x , where s is the number of pair of shoes kelly still needs to sell and x is the number of days she has worked that month. what is the meaning of the number 300 in this equation
Answers: 3
question
Mathematics, 21.06.2019 21:00
An account with a $250 balance accrues 2% annually. if no deposits or withdrawals are made, which graph can be used to determine approximately how many years will it take for the balance to be $282? it's e2020 ni️️as
Answers: 1
question
Mathematics, 22.06.2019 01:40
(co 3) the soup produced by a company has a salt level that is normally distributed with a mean of 5.4 grams and a standard deviation of 0.3 grams. the company takes readings of every 10th bar off the production line. the reading points are 5.8, 5.9, 4.9, 6.5, 5.0, 4.9, 6.2, 5.1, 5.7, 6.1. is the process in control or out of control and why? it is out of control as two of these data points are more than 2 standard deviations from the mean it is in control as the data points more than 2 standard deviations from the mean are far apart it is out of control as one of these data points is more than 3 standard deviations from the mean it is in control as the values jump above and below the mean
Answers: 2
You know the right answer?
Which expression is equivalent to -21?
A. 9-(-12)
B. 9+(-12)
C. -9+12
D. -...
Questions
question
Chemistry, 18.10.2021 23:30
question
Mathematics, 18.10.2021 23:30
question
Mathematics, 18.10.2021 23:30
question
Advanced Placement (AP), 18.10.2021 23:30
question
Mathematics, 18.10.2021 23:30
Questions on the website: 13722363