First distribute the negative to the second equation which would give you:
25x^2 - 14xy + 4 -7x^2 + 9y + 2xy + 7
Since addition is commutative. you can now just add like terms.
18x^2 - 12xy + 9y + 11
Answer:
See Explanation
Step-by-step explanation:
Given
--- Number of tryouts
Required
Determine the average distance
<em>This question has missing details, as the distance he hits the ball in each tryout is not given. However, I'll give a general explanation.</em>
<em></em>
The mean is calculated as:

means the sum of the distance in each tryout.
Assume that the distance in the 10 tryouts are: 
So, the mean is:



<em>So, the average distance is 6.5</em>
Answer:
∠TUS I'm pretty sure because t and u make a right angle
A is the answer............ If you plot it on a graph, it shows a square.
Answer:
y= 34/23
x= 123/46
Step-by-step explanation:
Solve for x
8x-5y= 14
x= 14/8 +5/8y
Sub x into second equation
– 5х+бу = -3
-5(14/8 +5/8y) + 6y= -3
-29/4 +23/8y = -3
y= 34/23
Sub y into any equation and solve for x
8x=483/23
x= 123/46