Y = 9x + 47
and
xy = 18601860
substitute for y in second equation:-
x(9x + 47) = 18601860
9x^2 + 47x - 18601860 = 0
factoring 18601860 is a pain so we use the quadratic formula:-
x = [(-47 +/- sqrt (47^2 - 4*9*-18601860)] / 18
this gives x = 1435 , -1440 so we want x=1435 as its positive
this make y = 9(1435) + 47 = 12962
the 2 integers are 1435 and 12962
Answer:
xy & 10xy.
Step-by-step explanation:
The original value is 32xy. Because it has the variable xy, you need to choose values with those same variables. This leaves xy and 10xy.
Yes
no
no
Reasoning: substitute in use algebra and easy answers
Mark brainliest please
Answer:
No
Step-by-step explanation:
It is a parallelogram but it does not contain at least 2 right angles.
The flying drones are illustrations of the laws of cosines
Both flying drones would be 128.13 meters apart after 1 hour
<h3>How to determine the distance between them</h3>
For drone A, we have:
- Angle =120 degrees
- Speed = 80 mph
So, the distance after one hour is:
Distance = 80 m
The distance is calculated using:
Distance = Speed * Time
For drone B, we have:
- Angle = 320 degrees
- Speed = 50 mph
So, the distance after one hour is:
Distance = 50 m
The angle between them is calculated as:
This gives
Using the laws of cosine, the distance (d) between them after 1 hour is:
So, we have:
Evaluate the expression
Hence, both drones would be 128.13 meters apart after 1 hour
Read more about laws of cosines at:
brainly.com/question/4372174