15 points and a brainliest to the correct ! pls asap
a security alarm requires a four-digit...
![subject](/tpl/images/cats/mat.png)
Mathematics, 02.12.2019 22:31 nevelle
15 points and a brainliest to the correct ! pls asap
a security alarm requires a four-digit code. the code can use the digits 0–9 and the digits cannot be repeated.
which expression can be used to determine the probability of the alarm code beginning with a number greater than 7?
a) (2p1)(9p3)/10p4
b) (2c1)(9c3)/10c4
c)(10p1)(9p3)/10p4
d)(10c1)(9c3)/10c4
![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, 21.06.2019 14:20
Suppose a least-squares regression line is given by modifyingabove y with caret equals 4.302 x minus 3.293. what is the mean value of the response variable if xequals20?
Answers: 3
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30
Angel entered a triathlon (a three-part race). he swam 1 mile, rode his bike 30 miles, and ran 10 miles. how far did he go altogether? a. 11 miles b. 123 miles c. 41 miles d. 40 miles
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 15:30
Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.
Answers: 1
![question](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 16:50
Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0
Answers: 1
You know the right answer?
Questions
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/es.png)
![question](/tpl/images/cats/istoriya.png)
History, 17.02.2021 02:20
![question](/tpl/images/cats/fizika.png)
![question](/tpl/images/cats/biologiya.png)
Biology, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/en.png)
English, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/mat.png)
![question](/tpl/images/cats/obshestvoznanie.png)
Social Studies, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20
![question](/tpl/images/cats/health.png)
Health, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20
![question](/tpl/images/cats/istoriya.png)
![question](/tpl/images/cats/mat.png)
Mathematics, 17.02.2021 02:20