Answer:
See there is x° see the angle is right angle so
X = 90°
Y = 270°
Answer:
The correct option is;
B. This equation is not considered to be a quadratic equation because it is not in the form a·x² + b·x + c = 0
Step-by-step explanation:
A. The given equation, x² - c = 0, can be presented in the form of the difference of two squares as follows;
(x + √c)·(x - √c) = 0
B. The equation x² - c = 0, is a quadratic equation because it is a polynomial equation of degree 2
C. The equation x² - c = 0 can always be factored as (x + √c)·(x - √c) = 0
D. Where c > 0, the equation x² - c = 0 can by the square root property as follows;
x² - c = 0
x² = c
x = √c
Answer:
121 degrees
Step-by-step explanation:
The "arc length" formula is s = rФ, where Ф represents the central angle in radians (not degrees).
Here r = 18 ft and s = 38 ft, and so:
38 ft
s = rФ becomes Ф = ------------ = 2.111 radians
18 ft
which, in degrees, is:
2.111 rad 180 deg
------------- * --------------- = 121 degrees, to the nearest degree
1 3.142
If I'm not mistaken, this is cross multiplying.
The first one is 2/2 = 6/10
You will multiply 2x10= 20
Multiply 6x X= 6x
You will divide 6 into 20.
20 / 6 = 3.33333
Second:
8/x =4/11
Multiply 8 x 11= 88
Multiply 4 x X = 4x
Divide 88/4
88/4=22
Answer: Infinitely many solutions
Explanation:
Let's say we had this system
y = x+5
x-y = -5
Let's replace y with x+5 in the second equation
x-y = -5
x-(y) = -5
x-(x+5) = -5
x-x-5 = -5
0x-5 = -5
0-5 = -5
-5 = -5
We end up with a true statement since we get the same number on both sides. This system has infinitely many solutions. The two equations produce the same straight line graph. Effectively, the two lines overlap perfectly to intersect infinitely many times.
Notice how solving x-y = -5 for y leads to y = x+5. This is more evidence that both original equations are identical (just in different forms).
