Answer:
x= 9, x= 2
Step-by-step explanation:
x^2- 2x- 9x+ 18= 0
x (x-2) -9 (x-2)
(x-9) (x-2)
x-9= 0, x-2= 0
Therefore, x= 9, x= 2
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Answer:
3.0pages
Step-by-step explanation:
If Tiffany type a page in an hour, then;;
1 page = 1 hour
To calculate the number of pages typed in 3 hours, we can express as;
x pages = 3 hours
Divide both expressions
1/x = 1/3
x* 1 = 1* 3
x = 3pages
She will type 3.0pages in 3 hours
You need to find the slope
251-248. 3
------------- = --------
2005-1965. 40
2/cos x
........................
Answer:
(x, y) = (77/240, -3/10)
Step-by-step explanation:
It is convenient to write the equations in standard form.
Multiplying the first equation by 21 gives ...
21y = 24x -14
Multiplying the second equation by 8 gives ...
24x +9y = 5
Then the system of equations in standard form is ...
Subtracting the first from the second, we get ...
(24x +9y) -(24x -21y) = (5) -(14)
30y = -9
y = -9/30 = -3/10
Substituting this into the second equation, we have ...
24x +9(-3/10) = 5
24x = 7.7 . . . . . . . add 27/10
x = 7.7/24 = 77/240
The solution is (x, y) = (77/240, -3/10).
