7Answer:
Step-by-step explanation:
Answer:
Hello your question has some missing information below is the complete question
answer :
Step-by-step explanation:
Red car and Blue car take up 2 spaces each
Green cars take up 1 space
<u>lets determine the number of ways of filling up the parking spaces</u>
i) First lets assume the last space is filled by Green car then there will be space occupied hence there will be ( n - 1 ) spaces left to be filled in ways
ii) lets assume the last space is filled by either a Red car or a Blue car then there will be parking space occupied hence there will be
( n - 2 ) spaces left to be filled in ways
<u>Hence A closed formula for </u><u> </u>
where : a1 = 1 way , a2 = 3 ways
It would be the same value as the y value of line b since for parallel lines are only off set by their x value
Answer:
x=−1/2+1/2√10 or -1/2+-1/2√10
Step-by-step explanation:
4x2+4x−2=7
Step 1: Subtract 7 from both sides.
4x2+4x−2−7=7−7
4x2+4x−9=0
For this equation: a=4, b=4, c=-9
4x2+4x+−9=0
Step 2: Use quadratic formula with a=4, b=4, c=-9.
x=
−b±√b2−4ac
2a
x=
−(4)±√(4)2−4(4)(−9)
2(4)
x=
−4±√160
8
x=
−1/2
+
1/2
Answer:
C. 0.75
or 75%
Step-by-step explanation:
15/20 = 0.75
75%