Answer:
3 hr(s)
Step-by-step explanation:
20 km/1 hour
60km/20km = 3
Answer:
Step-by-step explanation:
( 
, 
)
( 
, 
)
m = 
parallel lines have the same slopes , perpendicular lines have slope which are opposite reciprocals.
~~~~~~~~~~~~~~~
A( 3 , 5 )
B( - 2 , 7 )
= 
= - 
C( 10 , 5 )
D( 6 , 15 )
= 
= - 
The answer is (A) Neither
This is one of the photos I used to answer, I’m going to send the second one
If a number equals the same number, there are infinite solutions
Example: 5=5, which is true, so there are infinite solutions
If a number equals a different number, there are no solutions
Example: 5=2, which isn’t true
Substitute y=4x to the second equation:
x^2 + (4x)^2 = 17
x^2 + 16x^2 = 17
17x^2 = 17
x^2 = 17/17
x^2 = 1
x = 1 and -1
When x=1, y=4(1) = 4
When x=-1, y=4(-1) = -4
Thus the solutions would be (1,4) and (-1,-4). That would correspond to D. and A.
