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a ) Two matrices cannot be multiplied.
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b )
The answer is | 20 - 4 - 12 |
| 8 2 19 - |
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You can write two equations using the given information:
.. L = W +8
.. L * W = 609
Using substitution, you get a quadratic.
.. (W +8) * W = 609
.. W^2 +8W -609 = 0
Not surprisingly, you're looking for factors of 609 that differ by 8.
.. 609 = 1*609 = 3*203 = 7*87 = 21*29
The last two are the factors of interest.
.. (W +29)(W -21) = 0
The width of the rectangle is 21 feet, the length is 29 feet.
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Sometimes it is easier to work with the average dimension. Here, let that be x. Then you have
.. (x +4)(x -4) = 609
.. x^2 -16 = 609
.. x^2 = 625 = 25^2 . . . . . . . one of your memorized math facts
So, the dimensions are
.. 25 +4 = 29 by 25 -4 = 21, that is, 29 ft by 21 ft.
Answer:
39 and 27
Step-by-step explanation:
GIVEN: Robbie, has scored 
so far this season. He has scored all of his points on 
-point extra point kicks and 
-point field goals. He has made a total of 
kicks.
TO FIND: How many of each kick has he made.
SOLUTION:
Lets extra point kicks made by Robbie be 
points scored using extra point kick 
field goal kicks made by Robbie 
point scored using field goal kick 
Total points scored by Robbie 
Total points scored are the sum of points scored by extra point kicks and field goal kicks.
total extra point kicks 
total field goal kicks 
Hence Robbie made 39 and 27 kicks of extra point kick and field goal kicks respectively.
If it is 1 2/3 it is 5/3. if it is 12/3 it is already a improper factor.<span />
It’s a functionnnnnnnnnnn
