Answer: B. x, in the second equation
Step-by-step explanation:
The given system :
To apply the substitution method , first we need to select the best variable and a equation which is easy to simplify.
From the given system equation (2) have all the numbers which are multiples of 3.
Then we divide 3 on both sides of equation (2), we get
Therefore, the best variable to solve for and from what equation is x, in the second equation.
Answer:
15 m
Step-by-step explanation:
you would use a sin equation because given the angle, the side you are resting to find is Opposite and the side you are given is the Hypotenuse
sin (32) = a/28
28 x sin (32) = a
14.83 = a
15 m = a when rounded
Answer:
(7, - 3 )
Step-by-step explanation:
Under a clockwise rotation about the origin of 270°
a point (x, y ) → (- y, x )
Thus
(- 3, - 7 ) → (7, - 3 )
Answer:
6n - 1.
Step-by-step explanation:
Arithmetic sequence.
a1 = 5, d = 6.
nth term = a1 + d(n - 1)
= 5 + 6(n - 1)
= 5 + 6n - 6
= 6n - 1.
Answer:
the correct answer is 8
Step-by-step explanation:
