Kdkdjs.heidosowidek . dieochfd
Answer: C) 42
There are 7 ways for the first place winner to be chosen. Once that position is locked up, there are 6 ways to have someone picked for second place (since that first place runner can't simultaneously be in both places at once)
So we have 7*6 = 42 different permutations.
The longer way to get this answer is to use the permutation formula as shown below
nPr = (n!)/(n-r)!
7P2 = (7!)/(7-2)!
7P2 = (7*6*5!)/(5!)
7P2 = 7*6 <---- note how this shows up, as we found earlier
7P2 = 42
Either way, the answer is 42
Answer:
23/ 40 (0.57) yards of fabric
Step-by-step explanation:
Claire bought 9/10 of a yard of fabric to make her granddaughter a dress. She only used 3/4 of the fabric.
9/ 10 x 3 /4
9/10 x 3/4 = 27/ 40
1 - 27/40 = 40 -27
/40
Therefore, 23/ 40 (0.57) yards of fabric is used by Claire.
Find the x intercepts by setting each x to equal 0:
(4-x)=0
4 -4 = 0
First x intercept = (4,0)
(x+2) = 0
-2 + 2 = 0
Second x intercept = (-2,0)
Now find the Y intercept by setting the x's to 0 and solve for y:
y = (4-0)(0+2)
y = 4*2
y = 8
The Y intercept is (0,8)
Now find the graph the the parabola crosses the x axis at -2 and 4 and also crosses the Y axis at 8.
Graph A is the correct one.
Answer:
11
Step-by-step explanation:
4 miles and 7 miles is 11 miles