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
Answer:
10 quarters
x=10
Step-by-step explanation:
25 pennies equals to .25 ⊄
6 nickels equals to .30⊄
2 dimes equals to .20⊄
Add it up: 25+30+20=75⊄
You will then subtract .75 from our total:
3.25-.75=2.50
You need 2.50 in quarters; remember .50 for two quarters and 1.00 for four.
Eight quarters will equal 2.00
and two quarters equals 50.
Add it up, 10 for 2.50.
You will have 10 quarters.
X=10
Answer:
<u>Part A</u>
- Reflect over the y-axis: (x, y) → (-x, y)
A (-4, 4) → (4, 4)
B (-2, 2) → (2, 2)
C (-2, -1) → (2, -1)
D (-4, 1) → (4, 1)
- Shift 4 units down: (x, y-4)
(4, 4-4) → A' (4, 0)
(2, 2-4) → B' (2, -2)
(2, -1-4) → C' (2, -5)
(4, 1-4) → D' (4, -3)
<u>Part B</u>
Two figures are <u>congruent</u> if they have the same shape and size. (They are allowed to be rotated, reflected and translated, but not resized).
Therefore, ABCD and A'B'C'D' are congruent. They are the same shape and size as they have only be reflected and translated.
Answer:
first one
28.26 im not 100% correct i dont think
