![subject](/tpl/images/cats/mat.png)
Mathematics, 20.10.2020 18:01 saucydolphin20p6x92l
Which expression is equivalent to (3x^2-6) – (5x^2-7x+5)-(9x+3)? A.-2x2–2x-4 B.-2x2–2x-14 C.-2x2-16x +2 D.-2x2–16x-14
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Another question on Mathematics
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:10
You use technology ans find a sum of 6.712e-8. write this sum in standard form
Answers: 1
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 02:30
According to a research study, parents with young children slept 6.4 hours each night last year, on average. a random sample of 18 parents with young children was surveyed and the mean amount of time per night each parent slept was 6.8. this data has a sample standard deviation of 0.9. (assume that the scores are normally distributed.) researchers conduct a one-mean hypothesis at the 5% significance level, to test if the mean amount of time parents with young children sleep per night is greater than the mean amount of time last year. the null and alternative hypotheses are h0: μ=6.4 and ha: μ> 6.4, which is a right-tailed test. the test statistic is determined to be t0=1.89 using the partial t-table below, determine the critical value(s). if there is only one critical value, leave the second answer box blank.
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 03:00
Luigi is the first person to finish a 5k race and is standing 13 feet beyond the finish line. another runner, mario, is still running the race and has approximately 24 feet before he reaches the finish line. what is the distance between mario and luigi? explain through words, numbers or pictures how you found the answer.
Answers: 1
You know the right answer?
Which expression is equivalent to (3x^2-6) – (5x^2-7x+5)-(9x+3)? A.-2x2–2x-4 B.-2x2–2x-14 C.-2x2-16x...
Questions
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 02:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 02:00
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/ekonomika.png)
Business, 07.07.2019 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 02:00
![question](/tpl/images/cats/biologiya.png)
Biology, 07.07.2019 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 02:00
![question](/tpl/images/cats/istoriya.png)
History, 07.07.2019 02:00
![question](/tpl/images/cats/istoriya.png)
History, 07.07.2019 02:00
![question](/tpl/images/cats/istoriya.png)
History, 07.07.2019 02:00
![question](/tpl/images/cats/biologiya.png)
Biology, 07.07.2019 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 02:00
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 02:00
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 07.07.2019 02:00