Answer:
I believe the answer is b
Step-by-step explanation:
I might be wrong
<span>x + 3y = –9
3x – 3y = 21
-------------------add
4x = 12
x = 3
substitute x = 3 into </span>x + 3y = –9
3 + 3y = –9
3y = -12
y = -4
Answer
(3, -4) is the solution of the system.
Answer:
Step-by-step explanation:
In physics the linear momentum p of an object is defined as the product of its mass by its velocity.
Where m is mass and v is velocity
In this case the professional fullback has a mass 
and a speed 
Then the momentum is:
R=C/2(eliminate "2" from r by dividing both sides by 2)
Answer:
65 degrees
Step-by-step explanation:
The question is not complete but we can assume that m<4 and m<8 are complementary i.e they both act at right angle.
If the both act at right angle, then m<4 + m<8 = 90
Given
m<4 = 25°
Substitute into the formula
m<4 + m<8 = 90
m<8 = 90 - m<4
m<8 = 90 - 25
m< 8 = 65 degrees
Hence the measure of m<8 is 65 degrees
<em>Note that we assumed that both angles acts at right angles </em>
