All categories

2 years ago

HELP ME PLS NEED IT QOUIKC

Mathematics

1 answer:

nexus9112 [7]2 years ago

6 0

Answer: 7.08 cm2

Step-by-step explanation:

You might be interested in

In a sociology class there are 1414 sociology majors and 1111 non-sociology majors. 33 students are randomly selected to present

saul85 [17]

Answer: $0.4065$

Step-by-step explanation:

Given : In a sociology class there are 14 sociology majors and 11 non-sociology majors.

Total students = 14+11=25

Number of students are randomly selected = 3

Then, the number of ways to select 3 students from 25 students :-

$^{25}C_3=\dfrac{25!}{(25-3)!3!}=\dfrac{25\times24\times23\times22!}{22!3!}\\\\=2300$

Number of ways to select at least 2 of the 3 students re non-sociology majors :-

$^{14}C_1\times^{11}C_2+^{14}C_0\times ^{11}C_{3}\\\\=(14)\times\dfrac{11!}{2!(11-2)!}+(1)\times\dfrac{11!}{3!(11-3)!}\\\\=(14)(11\times5)+\dfrac{11\times10\times9}{6}\\\\=770+165=935$

The probability that at least 2 of the 3 students selected are non-sociology majors will be :-

$\dfrac{935}{2300}=0.40652173913\approx0.4065$

8 0

3 years ago

5. Ms. Sellers flew out to Utah to take her sons to college. If she flew 245.6

lara31 [8.8K]

Answer:

Step-by-step explanation:

distance flown in 5.4 hours = 245.6 miles

distance flown in 1 hour = 245.6/5.4

= 45.481 miles

Hope this helps

plz mark as brainliest!!!!!

8 0

2 years ago

Read 2 more answers

Change 2.1 to a mixed number

Brut [27]

Answer: 2 $\frac{1}{10}$

Step-by-step explanation:

2.1 is the same as 21/10

which will give 2 $\frac{1}{10}$

4 0

2 years ago

Read 2 more answers

Every 3 days Seth goes to the grocery store. His best friend Brian goes every 5 days. On what day will both go to the store on t

quester [9]

Answer:

day 15 is the answer you are looking for

3 0

3 years ago

The difference of a number c and 17 is more than 33

serg [7]

Answer:

$c > 50$

Step-by-step explanation:

$c -17 > 33 \\ c -17 +17 > 33 +17 \\ c > 50$

4 0

2 years ago