Easy.
7x + 2 = 2
7x = 2 - 2
7x = 0
x = 0 / 7
x = 0
Verify this by putting x = 0 ...
7 ( 0 ) + 2 = 2
0 + 2 = 2
2 = 2
Hence, "0" is the final answer.
Hope helps ........
Answer:
13)
14)
15)
16)
Step-by-step explanation:
Answer:
y= -4x+7
Step-by-step explanation:
The equation of a line is usually written in the form of y=mx+c, where m is the gradient and c is the y-intercept.
Let's find the gradient of the line first.
Using the above formula,
Susbt. m= -4 into the equation:
y= -4x +c
Subst. a coordinate to find c.
When x=3, y= -5,
-5= -4(3) +c
-5= -12 +c
c= 12 -5
c=7
Thus the equation of the line is y= -4x +7.
Actually, it means from left to right and such. For example:
(book1) (book3) (book5) (book6) (book2)
So, Because there are six books to arrange on the shelf, there are six stages in the problem. You must decide what the first book will be, what the second book will be, what the third book will be, and so on.
There are 6 choicses for the first book, 5 choices for the second book, 4 choices for the third book, and so on.
6 x 5 x 4 x 3 x 2 x 1 = ?
= !6
=720
Six books can be arranged 720 different ways.
The complete question in the attached figure
we know that
tan ∠AOB=opposite side angle ∠AOB/adjacent side angle ∠AOB
opposite side angle ∠AOB=1
adjacent side angle ∠AOB=√3
angle ∠AOB=pi/a radians
so
tan (pi/a)=1/√3---------> tan (pi/a)=√3/3
we know that
tan 30°=√3/3
30° is equal to pi/6 radians
and
angle (pi/a) belong to the I quadrant
so
(pi/a)=pi/6
a=6
the answer isa=6