Answer:
Always
Step-by-step explanation:
The definition of a perpendicular line is that it intersects another at a 90 degree angle. Using this, by verticals, the opposite corner angle must also be 90-degrees, and since one side of a line is 180 degrees, 180-90 = 90, which ensure the rest of the angles will be 90 degrees too.
Answer:
(10, 14)
Step-by-step explanation:
To solve this system let's use substitution:
Solve the first equation for x, obtaining x = 24 - y, and then substitute 24 - y for x in the second equation:
3(24 - y) + 5y = 100
Performing the indicated multiplication, we get:
72 - 3y + 5y = 100
Combining like terms results in 72 - 100 = -2y, or -28 = -2y
Thus, y must be 14.
If y = 14, then the first equation tells us that x = 10.
Check: Is this true? 3(10) + 5(14) = 100 YES
The solution is (10, 14).
What was it about the questions on the best that you were supposed to compare to this solution?
Answer:
1. B- FH
2. D
i hope these answers are correct and was able to help you
Answer:
ZERO
Step-by-step explanation
Write the given function as
F(x) = ax + b
i.e Y = ax + b
now differentiate Y with respect to X
dY/dX = d (ax + b)/ dx
dY/dX = a
now again differentiate this function with respect to x
so, d^2Y/dX^2 = d^2 (a)/dX^2
= 0 (ZERO)
note: differentiation of constant function is zero
