Answer:
5120
Step-by-step explanation:
divide the entire group into 10 groups where each group has a man and his wife.
number of ways of selecting 9 groups is 10C9 which equals 10 ways
the number of ways selecting 1 person from a group is 2C1 =2 .
So that means the number of ways of selecting 1 person from 9 groups is 2^9=512
number of ways to form the committee is 10*2^9=5120
Answer:
F(4)= 2
Step-by-step explanation:
F(x) = 2x^2 − 30, find f(4).
F(4)= (2)(4)^2 - 30
F(4)= (2)(16) - 30
F(4)= 32 - 30
F(4)= 2
Answer:
The first step is you have to eliminate all factors that are common of the numerator and the denominator.
Step-by-step explanation:
If you need more help ,here's a link https://www.mathplanet.com/education/algebra-1/rational-expressions/simplify-rational-expression
Answer: 27.44 % decrease in gas prices
Step-by-step explanation: First subtract 2.15 by 1.56 to get 0.59
then divide it by the starting value which is 2.15
0.59 divided by 2.15 is approximately 0.2744
then multiply times 100 to get 27.44 %
hope this helps mark me brainliest if it helped
