The total number of unique subset of 5 letter words possible are 840 and the total number of different strings that could be made 5040.
The word 'unusual' contains a total of 7 letters.
A subset of 5 letters from the seven letters of the word unusual can be found out by making the combinations of all the five letter words possible from the seven letters.
As we can see that there are total of 7 letters among which u is repeated three times. Number of the possible combinations for the subset of 5 letter word are,
= 7×6×5×4
= 840.
So, there are 840 subset possible.
The total number of Strings that are possible is,
= 7×6×5×4×3×2×1
= 5040.
So, the total number of Strings possible are 5040.
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Answer:
Inverted parabola
Two complex solution
Step-by-step explanation:
any quadratic equation can be expressed in terms of ax^2 + bx + c = 0
It has two solutions which can be found using formula 
We know that for any value inside the square root function
if it is positive its solution will be real number
for example
we can have two real solution -3 and 3
if it is negative its solution will be complex number
for example
we can have two complex solution
expressed in term of a + ib or a - ib
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Given in the problem
we have ax^2 - bx + c
so its solution will be

Since in this expression it is given in problem statement that b^2 - 4ac < 0 which will be a negative number and for negative number, its square root is complex number.
also X has two values as given above it will have two solution
hence it will have two complex solution based on above discussion.
Also for any quadratic equation shape of its curve if plotted on coordinate plane is parabolic.
If it has complex solution then curve of such expression will not pass through X axis
Your answer is A. When doing negatives, the smaller number is actually greater.
Hope this Helps!
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9514 1404 393
Answer:
$81
Step-by-step explanation:
The garden is 4 yards = 12 feet by 3 yards = 9 feet. The area of it is the product of these dimensions, ...
(12 ft)(9 ft) = 108 ft²
The cost of fertilizer for that area will be ...
($0.75/ft²)(108 ft²) = $81.00
They will spend $81.00 to fertilize the garden.
Y=2x-3 rise over run and then the y intercept