7x+8y=19
-6x -8y=18
--------------- <em>Add both equations</em>
x = 37
Using x = 37 in the first equation:
7(37)+8y=19
259+8y = 19
8y = 19 - 259
8y = -240
y = -240/8
<h3>y = -30</h3>
Answer:
The slope of the line that contains FG is -1
Step-by-step explanation:
Given
--- equation of EF
Required
Determine the equation of FG
First, we calculate the slope of EF
Make y the subject
A linear equation has the form:
Where
By comparison:
In square EFGH, EF and FG are perpendicular.
So, the relationship between their slopes is:
Where
--- slope of EF
The equation becomes:
Answer:
if it needs that much sugar dont make it
Step-by-step explanation:
Answer:
d. 20
Step-by-step explanation:
The given question implies 5 permutation 2, i.e .
But,
=
So that for , n = 5 and r = 2.
=
=
=
Cancel out 3 and 2 with respect to the numerator and denominator.
= 5 * 4
= 20
Therefore,
= 20
So that the correct option is D.
Answer:
Step-by-step explanation:
5 times a times 5 times a
you can do 5 times 5 first and get 25
then you can do a times a and that gets you
then you multiply these two together and you can get