Angle CDA = Angle CBA
(x^2)+8x+7
x= -1,-7
Answer: N = 20C2 = 190
Therefore, Timika has 190 ways of choosing the pairs of children to lead the way
Step-by-step explanation:
Given;
Total number of children = 20
Number of children to lead the way = 2
Since all the children have equal possibilities of being selected to lead the way, and for the order is not important.
Then the number of ways to select two leaders from 20 children will be given by;
N = 20C2 = 20!/2!(20-2)! = 20!/2!18!
N = 20 × 19/2
N = 190
Therefore, Timika has 190 ways of choosing the pairs of children to lead the way
The equation that shows the relationship between the number of round trips, x and the number of kilometers, y Scott walked is y = 3x
Each round trip = 3 km
x = number of rounds
y = number of km he has walked in all.
1 rounds = 3 km
Therefore,
x rounds = 3x km
Each round of trip covers 3km. This means for each round of trip a distance of 3km is covered. The total distance or number of kilometers is represented with y.
The equation to show the relationship between x(number of rounds) and y (number of km) can be represented below
read more: brainly.com/question/14197865?referrer=searchResults
The two answers are -4 and 4, because 0-4 is -4 and 0+4 is 4. Hope this helps
The equation r = u/st is equivalent to u = rst .
True
