I think the answers are:
The ordered pair (−4, 0) is a solution to the first equation because it makes the first equation true.
The ordered pair (−4, 0) is a solution to the second equation because it makes the second equation true.
The ordered pair (−4, 0) is not a solution to the system because it makes at least one of the equations false.
Hope this helps, have a good day. c;
Answer:
67.5 degrees
Step-by-step explanation:
The sum of measures of angles around a circle is 360°. The little square in the corner of the one angle indicates that is a right angle, 90°. So you have ...
x + 3x + 90 = 360
4x = 270 . . . . . . . . . subtract 90, collect terms
x = 67.5 . . . . . . . . . divide by 4
The value of x is 67.5 degrees.
_____
If x is in radians, then it is 3π/8 radians.
Answer:
see below
Step-by-step explanation:
Right triangle
cosine 60 =adjacent leg / hypotenuse
cosine 60 = x / 22 x = 22 cos 60 = 11
sine 60 = opposite side / hypotenuse = y/22
22 sin 60 = y = 22 * sqrt (3) / 2 = 11 sqrt 3 or 19.05
Answer:
Please check the explanation.
Step-by-step explanation:
Given the polynomial function
Let us determine the factors by solving
Using the zero factor principle:
if 
Thus, (x+2) (x+4) and (x-4) are the factors of the polynomial function.
Therefore,
YES
And (x-2) (x+6) are not the factors of the polynomial function.
Therefore,
YES
Answer:
(x, y) =(-6,4)
Step-by-step explanation:
3x-y=-28
-5x-4y=-10
y=3x+28
-5x-4(3x+28)=-10
y=3x+28
-5x-12x-112=-10
y=3x+28
-17x=-10+112
y=3x+28
-17x=102
y=3x+28
x=102/(-17)
y=3x+28
x=-6
y=3*(-6)+28
x=-6
y=-24+28
x=-6
y=4
x=-6
(x,y)=(-6,4)
